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It seems that in regard to the exercise of the sense of smell by man, we must distinguish not only greater from less acuteness and variety of perception, but in the case of this sense-organ, as in regard to the others, we must distinguish "unconscious" from "conscious" sensation. All our movements are guided and determined by sensations to touch and sight, and to some extent, of hearing, of which we are unconscious. A vast amount of our sense-experience comes to us and is recorded without our having consciousness of anything of the kind going on. It is probable that the world of smells in which a dog with a fine olfactive sense lives, produces little or nothing in the dog's mind which is equivalent to our conscious perception of degrees of agreeable and disagreeable odours. The dog is simply attracted and repulsed in this direction and in that by the operation of his olfactive organs, without, so to speak, giving any attention to the sensation which is guiding him or being "aware" of it. No doubt at times, and with special intensities of smell, he is, in his way, conscious of a specific sensation. It is probable that whilst man's general acuteness in perceiving and discriminating smells has dwindled (as has that of the apes) in comparison with what it was in his remote animal ancestry, yet he retains a large inherited capacity of unconscious smell-sense, which most of us are unable to recognise, although it is there, operating in ourselves unknown to us and unobserved. The consciousness of smell-sensations is what we value and talk of. It does not extend to the more primal smell-excitations, except in extraordinary individuals. Thus, it seems to be not improbable that we are attracted or repelled by other human individuals by the unconscious operation upon us of attractive or repulsive odours, and that the unaccountable liking or disliking which we sometimes experience in regard to other individuals is due to perfumes and odours emanating from such persons, which act upon us through our olfactory organs without our being conscious of the fact. It seems that we can thus arrive at a probable explanation of the universality of the habit of kissing, and of "what is that thing we call a kiss." It is not consciously used among civilised populations as a deliberate attempt to smell the person kissed, but it nevertheless serves to allow the unconscious exercise of smell-preference, testing, and selection, with which are mingled, more or less frequently, moments of conscious appreciation of the complex of odours appertaining as an individual quality to the person kissed.
CHAPTER XII
LAUGHTER
The ancients associated laughter with the New Year. I am not sure whether or no it is of good omen to begin the New Year with laughter. Omens are such tricky things that I have given up paying any attention to them. One would think it might be held to be unlucky to stumble on the doorstep as you set out from home, but the old omen-wizards, apparently from sheer love of contradiction, said, "Not at all! It is unlucky to stumble as you come into the house, and therefore it is lucky to stumble as you go out!"
What is laughter? It is a spasmodic movement of various muscles of the body, beginning with those which half close the eyes and those which draw backwards and upwards the sides of the mouth, and open it so as to expose the teeth, next affecting those of respiration so as to produce short rapidly succeeding expirations accompanied by sound (called "guffaws" when in excess) and then extending to the limbs, causing up and down movement of the half-closed fists and stamping of the feet, and ending in a rolling on the ground and various contortions of the body. Clapping the hands is not part of the laughter "process," but a separate, often involuntary, action which has the calling of attention to oneself as its explanation, just as slapping the ground or a table or one's thigh has. Laughter is spontaneous, that is to say, the movements are not designed or directed by the conscious will. But in mankind, in proportion as individuals are trained in self-control, it is more or less completely under command, and in spite of the most urgent tendency of the automatic mechanism to enter upon the progressive series of movements which we distinguish as (1) smile, (2) broad smile or grin, (3) laugh, (4) loud laughter, (5) paroxysms of uncontrolled laughter, a man or woman can prevent all indication by muscular movement of a desire to laugh or even to smile. Usually laughter is excited by certain pleasurable emotions, and is to be regarded as an "expression" of such emotion just as certain movements and the flow of tears are an "expression" of the painful emotion of grief and physical suffering, and as other movements of the face and limbs are an "expression" of anger, others of "fear." The Greek gods of Olympus enjoyed "inextinguishable laughter."
It is interesting to see how far we can account for the strange movements of laughter as part of the inherited automatic mechanism of man. Why do we laugh? What is the advantage to the individual or the species of "laughing"? Why do we "express" our pleasurable emotion and why in this way? It is said that the outcast diminutive race of Ceylon known as the Veddas never laugh, and it has even been seriously but erroneously stated that the muscles which move the face in laughter are wanting in them. A planter induced some of these people to camp in his "compound," or park, in order to learn something of their habits, language, and beliefs. One day he said to the chief man of the little tribe, "You Veddas never laugh. Why do you never laugh?" The little wild man replied, "It is true; we never laugh. What is there for us to laugh at?"—an answer almost terrible in its pathetic submission to a joyless life. For laughter is primarily, to all races and conditions of men, the accompaniment, the expression of the simple joy of life. It has acquired a variety of relations and significations in the course of the long development of conscious man—but primarily it is an expression of emotion, set going by the experience of the elementary joys of life—the light and heat of the sun, the approach of food, of love of triumph.
Before we look further into the matter it is well to note some exceptional cases of the causation of laughter. The first of these is the excitation of laughter by a purely mechanical "stimulus" or action from the exterior, without any corresponding mental emotion of joy—namely by "tickling," that is to say, by light rubbing or touching of the skin under the arms or at the side of the neck, or on the soles of the feet. Yet a certain readiness to respond is necessary on the part of the person who is "tickled," for, although an unwilling subject may be thus made to laugh, yet there are conditions of mind and of body in which "tickling" produces no response. I do not propose to discuss why it is that "tickling," or gentle friction of the skin produces laughter. It is probably one of those cases in which a mechanism of the living body is set to work, as a machine may be, by directly causing the final movement (say the turning of a wheel), for the production of which a special train of apparatus, to be started by the letting loose of a spring or the turning of a steam-cock, is provided, and in ordinary circumstance is the regular mode in which the working of the mechanism is started. The apparatus of laughter is when due to "tickling" set at work by a short cut to the nerves and related muscles without recourse to the normal emotional steam-cock.
Then we have laughter which is purely due to imitation and suggestion. People laugh because others are laughing, without knowing why. This throws a good deal of light on the significance of laughter. It is essentially a social appeal and response. Only in rare cases do people laugh when they are alone. Under conditions which in the presence of others would cause them to laugh they only "chuckle" or smile, and may, though ready to burst into laughter, not even exhibit its minor expressions when alone. On the other hand, some sane people have the habit of laughing aloud when alone, and there is a recognised form of idiocy which is accompanied by incessant laughter, ceasing only with sleep. Then there is that peculiar condition of laughter which is called "giggling," which is laughter asserting itself in spite of efforts made to restrain it, and frequently only because the occasion is one when the "giggler" is especially anxious not to laugh. This kind of "inverted suggestion," as in the case where an individual "blurts out" the very word or phrase which he is anxious not to use, is obviously not primitive, but connected with the long training and drilling of mankind into approved "behaviour" by "taboos" and restrictive injunctions. Efforts to behave correctly, by causing anxiety and mental disturbance in excitable or so-called "nervous" subjects, lead to an over mastering impulse to do the very thing which must not be done!
It seems that laughter has its origin far back in the animal ancestry of man, and is essentially an expression to others of the joy and exhilaration felt by the laugher. It is an appeal through the eye and ear for sympathy and comradeship in enjoyment. Its use to social animals is in the binding together of the members of a group or society in common feeling and action. Many monkeys laugh, some of them grinning so as to show the teeth, partly opening the mouth and making sounds by spasmodic breathing, identical with those made by man. I have seen and heard the chimpanzees at the Zoological Gardens laugh like children at the approach of their friend and my friend, the distinguished naturalist, Mr. George Boulenger, F.R.S., recognising him among the crowd in front of their cage when he was still far off. And I have often made chimpanzees laugh—"roar with laughter," and roll over in excitement—by tickling them under the arms. The saying of Aristotle (inscribed over the curtain of the Palais Royal Theatre in Paris) that "Laughter is better than tears, because laughter is the speciality of man," is not true. Not only do the higher apes and some of the smaller monkeys laugh, but dogs also laugh, although they do not make sounds whilst indulging in "spasms of laughter." But their distant cousin, the hyena, does laugh aloud, and its laughter agrees with that of the dog and with the laughter of children and grown men in simpler moods in that it is caused by the pleasurable emotion set up by the imminent gratification of a healthy desire. The hyena laughs, the dog grins and bounds, the child laughs and jumps for joy at the approach of something good to eat. But it is a curious fact that the whole attitude is changed when the food is within reach, and the serious business of consuming it has commenced! Nor, indeed, is the satisfaction which is felt after the gratification of appetite accompanied by laughter. It seems that the display of the teeth by drawing back the corners of the mouth, which is called a "grin," and is associated in many dogs with a short, sharp, demonstrative bark, and in mankind with the cackle we call a "laugh," is a retention, a survival, of the playful, good-natured movement of gently biting or pulling a companion with the teeth used by our animal ancestors to draw attention to their joy and to communicate it to others. Gradually it has lost the actual character of a friendly bite; the fore-feet or hand pull instead of the teeth; the sound emitted has become further differentiated from other sounds made by the animal. But the movement for the display of the teeth, though no longer needed as a part of the act of gripping, remains as an understood and universal indication of joy and kindly feeling. So universal is it that this friendly display of the teeth under the name "smile" is attributed to Nature, to Fortune, and to deities by all races of men when those powers seem to favour them.
Laughter is, then, in its essence and origin, a communication or expression to others of the joyous mood of the laugher. There are many and strangely varied occasions when laughter seizes on man, and it is interesting to see how far they can be explained by this conception of the primary and essential nature of the laugh, for many of them seem at first sight remote from it. There is, first of all, the laughter of revivification and escape from death or danger. After railway accidents, earthquakes, and such terrible occurrences, those who have been in great danger often burst into laughter. The nervous balance has been upset by the shock (we call them "shocking accidents"), and the emotional joy of escape, the joy of recovered life, asserts itself in what appears to the onlooker to be an unseemly, an unfeeling laugh. It is recorded that one of the entombed French coal miners, who two years ago were imprisoned without food or light for twenty days a thousand feet below in the bowels of the earth, burst into a ghastly laugh when he was rescued and brought to the upper air once more. The Greeks and Romans in some of their festal ceremonies made the priest or actor who represented dead nature returning to life in the spring, burst into a laugh—a ceremonial or "ritual" laugh. Our poets speak of the smiles, and even of the laughter of spring, and that is why laughter is appropriate to New Year's Day. It is the laughter of escape from the death of winter and of return to life, for the true and old-established New Year's Day was not in mid-winter, but a quarter of a year later, when buds and flowers are bursting into life. It is recorded by ancient writers that the "ritual laugh" was enforced by the Sardinians and others who habitually killed their old people (their parents) upon their victims. They smiled and laughed as part of the ceremony, the executioners also smiling. The old people were supposed to laugh with joy at the revivification which was in store for them in a future state. So, too, the Hindoo widows used to laugh when seated on the funeral pyre ready to be burnt. So, too, is explained (by Reinach) the laughter of Joan of Arc when she made her abjuration in front of the faggots which were to burn her to death. Her laugh was caused by the thought of her escape from persecution and of the joyful resurrection soon to come. It was not an indication that she was not serious, and that her abjuration of witchcraft was a farce, as her enemies asserted.
More difficult to explain is the laughter excited by scenes or narrations which we call ludicrous, funny, grotesque, comic; and still more so the derisive and contemptuous laugh. Caricature or burlesque of well known men is a favourite method of producing laughter among savages as well as civilised peoples. Why do we laugh when a man on the stage searches everywhere for his hat, which is all the time on his head? Why do we laugh when a pompous gentleman slips on a piece of orange-peel and falls to the ground, or when one buffoon unexpectedly hits another on the head, and, before he has time to recover, with equal unexpectedness hooks his legs with a stick and brings him heavily to the ground? Why did we laugh at the adventures of Mr. Penley in "Charley's Aunt"? In all of these "ludicrous" affairs there is an element of surprise, a slight shock which puts us off our mental balance, and the subsequent laughter, when we realise either that no serious harm has been done or that the whole thing is make-believe, seems to partake of the character of the "laugh of escape." It is caused by a sense of relief when we recognise that the disaster is not real. We laugh at the "unreal" when we should be filled with horror and grief were we assured that there was real pain and cruelty going on in front of us. The laughter caused by grotesque mimicry or caricature of pompous or solemn individuals seems to arise from the same (more or less unconscious) working of the mind as that caused by some unexpected neglect of those social "taboos" or laws of behaviour which we call modesty, decency, and propriety. They either cause indignation and resentment in the onlooker at the neglect of respect for the taboo, or, on the contrary, the natural man, long oppressed by pomposity or by the fetters of propriety imposed by society, suddenly feels a joyous sense of escape from his bonds, and bursts into laughter—the laughter of a return to vitality and nature—which is enormously encouraged and developed into "roars of merriment" by the sympathy of others around him who are experiencing the same emotion and expressing it in the same way.
The laugh of derision and contempt and the laugh of exultation and triumph are of a different character. I cannot now discuss them further than to say that they are either genuine or pretended assertions of joy in one's own superior vitality or other superiority. The "sardonic smile" and "sardonic laughter" have been supposed by some learned men to refer to the smiles of the ancient Sardinians when stoning their aged parents. But they have no more to do with Sardinians than they have with sardines or sardonyx. The word "sardonic" is related to a Greek word which means "to snarl," and a sardonic grin is merely a snarl. In it the teeth are shown with malicious intent, and not as they are in the benevolent appeal of true laughter. Mrs. Grote, the wife of the great historian (who was herself declared by a French wit to furnish the explanation of the word "grotesque"), wrote of "Owen's sugar-of-lead smile"—referring to the great naturalist, Richard Owen. There was no malice in the description, for he had, as some others have, a very sweet smile, accompanied by a strangely grave and disapproving glare in his large blue prominent eyes. It was only apparently sugar of lead; really, it was sugar of milk—the milk of human kindness. The smile of the lost picture called "La Gioconda" is by fanciful people regarded as something very wonderful. It is really the clever portraiture of the habitual "leer" of a somewhat wearied sensual woman. It had a fascination for the great Leonardo, but no profound significance.
CHAPTER XIII
FATHERLESS FROGS
One of the most interesting discoveries of recent date in regard to the processes which go on in that all-important material—protoplasm—which is the physical basis of life and the essential constituent of "cells"—those minute corpuscles of which all living bodies are built—was made in 1910 by a French naturalist, M. Bataillon, and has been examined and confirmed by another French biologist, M. Henneguy. To explain this discovery, a few words as to well-known facts are necessary. It is well known that if we isolate a female frog at the egg-laying season and let her swim in perfectly pure filtered water, and proceed to deposit some of her eggs in that water, the eggs will not germinate; they remain unchanged for a time and then decompose—become, in fact, "rotten." It is a matter of common knowledge that it is necessary for the eggs to be "fertilised" in order that they may start on that series of changes and growth which we call "development," and become tadpoles and eventually young frogs. The "fertilisation" of the frog's eggs is effected in ordinary conditions by the presence in the water of the pond, into which the female sheds them, of microscopic sperm-filaments (often called spermatozoa, or simply "sperms") which are shed into the water at the same time by the male frog.
The egg (the blackish-brown spherical body, as big as a rape-seed, which is imbedded in a thin jelly, and is familiar to those who are drawn by curiosity to look into the waters of wayside ponds in spring) is a single cell or corpuscle of protoplasm distended with dark-coloured and other granules of nutrient substance. A single sperm (though requiring the microscope to render it visible) is also a single cell. It is a minute oval body, with a long serpentine tail of actively undulating protoplasm. Hundreds of thousands of these are shed into the water at the breeding season by the male frog. One is enough to fertilise the egg. The sperm-cells swim in the water, and are chemically attracted by the eggs. As there are so many sperms, one of them is sure to reach each black egg-sphere. It drives its way into the substance of the egg, making a minute hole in its surface; then the protoplasm of the sperm fuses with the protoplasm of the egg, and becomes intimately mixed with it. The egg-cell has a "nucleus," that dense, peculiar, deep-lying, and well-marked "kernel" of its protoplasm which all cells have. It is of essential importance in the life and activity of the cell. The sperm-cell has also a "nucleus," and now (as has been carefully ascertained) the nucleus of the sperm and the nucleus of the egg-cell unite and form one single nucleus. The egg is thereupon said to be "fertilised"—that is to say, "rendered fertile." It at once commences to move. Its surface ripples and contracts and nips in deeply, so that the sphere is marked out into two hemispheres. These are two "cells," or masses of protoplasm, adhering to each other. Each is provided with its own distinct nucleus or cell-kernel, for the first step in the division of the egg-sphere is the division within it of its newly constituted nucleus into two, each half consisting of nearly equal proportions of the mingled substance of the sperm-nucleus and the egg-nucleus. The two first cells or hemispheres again divide, and so the process goes on until the little black egg has the appearance of a mulberry, each granule of the berry being a cell provided with its own nucleus derived from the original nucleus formed by the fusion of the nuclei of the paternal and maternal cells. In the course of a day or two the division has proceeded so far that the resulting "cells" are so small as to be invisible with a hand-glass, and require one to use a high magnifying power in order to distinguish them. And there are hundreds of them; the whole mass of the "egg" within, as well as on the surface, has divided into separate cells. They go on multiplying, take up water, and nourish themselves on the granular nutritive matter present from the first in the egg-cell. The little mass elongates, increases in size, and gradually assumes the form of a young tadpole.
We see, then that the process of fertilisation consists in two things, the latter of which necessitates the former, viz. in the breaking or penetration of the surface of the egg-cell by the active sperm filament and second in the fusion of the substance of the sperm filament with that of the egg in such a way that there is a distinct and intimate fusion of the nucleus of the sperm filament with the nucleus of the egg-cell. The recent discovery of M. Bataillon is this, viz. that you can make the frog's egg develop in a perfectly regular way and become a tadpole and then a young frog without the admission to it of a sperm-filament or of any substance derived from the male frog. All you have to do—and the operation, though it sounds easy and simple, is an exceedingly delicate and difficult one—is to prick with a fine needle the surface of the little black egg-sphere (not merely of the jelly surrounding it) when it is shed by the female frog into perfectly pure water free from sperms or anything of the sort. The slight artificial puncture acts as does the natural puncture by the swimming sperm-filament, and is sufficient! The egg proceeds to develop quite regularly. There is no fusion of the nucleus of the egg-cell with any matter from the outside; no paternal "material" is introduced, but the nucleus of the egg-cell divides just as though there had been! The whole progeny of cells, successively formed, are the pure offspring of the maternal egg-cell and its nucleus. The tadpoles and young frogs so produced are examples of what is called "parthenogenesis"—that is to say, virginal reproduction—reproduction without fertilisation by material derived from a male parent! The needle, which gives off no material, but simply makes a tiny break in the surface of the egg, does all that is necessary!
To those not acquainted with all that has been ascertained as to the reproduction of lower animals such as insects, crustaceans, and worms, this discovery will appear more astonishing than it really is. We know of many lower animals in which the egg-cells produced by the females do regularly and naturally develop without the intervention of a male and without fertilisation. In an earlier volume[7] of this "Easy Chair Series" I wrote of this curious subject, and described the virgin reproduction or parthenogenesis of the hop-louse and other plant lice, of some moths, of some fresh-water shrimps, and of the queen bee (who produces only drones by eggs which are not fertilised). But I had to point out then that no case was known of "parthenogenesis"—that is to say, reproduction by unfertilised eggs—among the whole series of vertebrate animals, the fishes, amphibians, reptiles, birds, and mammals. The chief point of novelty in M. Bataillon's discovery is that we have now an experimental demonstration of parthenogenesis in a vertebrate animal, and in one so highly organised as the frog. And equally interesting, indeed more important from the point of view as to the real meaning and nature of fertilisation, is the mode in which the parthenogenesis of the frog is set going, namely, by a mere prick of the surface film of the ripe egg!
There have, however, been important experiments on the subject of the development of eggs without fertilisation in recent years, prior to these discoveries as to the frog's egg. A favourite subject for such inquiries is the sea urchin (Echinus of different kinds). The female sea urchin, or sea egg, like its close allies the star fishes, lays a great number of very transparent minute eggs (each about the 1/200th of an inch in diameter) in sea-water, and they are there fertilised by the mobile sperm filaments discharged by the males. The eggs are so transparent and so easily kept alive in jars of sea-water that there is no difficulty in watching under the microscope the penetration of the egg by a sperm, and the fusion and other changes in the nuclei. Delages of Paris, and Loeb of California, have made valuable studies on these eggs. Loeb has shown that they may be artificially started on the course of development and cell division without fertilisation—simply by the action of minute quantities of simple chemicals (fatty acids, etc.) introduced into the sea-water by the experimenter. These chemicals appear to act on the delicate pellicle which forms the surface of the egg-cell in much the same way as the prick of a needle acts on a frog's egg. A limited and delicately adjusted disturbance of the cohesion (or of the surface-tension) of the egg-cell seems to be all that is necessary for starting the egg-cell on its career of development. It becomes, in the light of these experiments, not so much a wonder that egg-cells should develop "on their own," but that they do not more frequently do so. It must be remembered that the "germination" and development of unfertilised eggs, even when the whole range of animals and plants is taken into account (for plants also are reproduced by single cells identical in character with the egg-cells and sperm-cells of animals), that is to say, the existence of "parthenogenesis" as a natural, regularly recurring process, is exceptional. We must distinguish cases in which it regularly occurs as part of the life-history of an animal or plant from cases in which it has been successfully brought about by experimental "artificial" methods designed by man. The plant-lice "naturally" reproduce through the summer by unfertilised eggs producing only females, but in the first cold of autumn males are hatched from some of the eggs, and the eggs of this generation are fertilised and bide through the winter, hatching in the following spring. Some few moths and flies also reproduce naturally during summer by unfertilised eggs, and the brine-shrimps and some other fresh-water shrimps produce "fatherless" broods from their eggs, sometimes for years in succession, until "one fine day" some males are hatched, owing to what causes we do not know. The queen bee naturally and regularly lays a certain number of unfertilised eggs, and these produce, not females as do the unfertilised eggs of plant-lice, etc., but male bees—the drones—and it is only from such eggs that the drones of bees are born. These are the chief cases of regular and natural parthenogenesis, but there are others which might be enumerated.
On the other hand, examples of artificially induced development of eggs, not fertilised, are very few. The first known came accidentally to notice. Female silkworm moths reared in confinement sometimes lay eggs when kept apart from the male, and these have been found to hatch, and give rise to caterpillars, which were not reared to maturity. Other moths bred by collectors behaved in the same way, but the grubs were reared to maturity, and three successive generations of "fatherless" moths were obtained. In these cases the hatching of unfertilised eggs is not known to occur in a state of nature, although it probably occurs occasionally. It has also been observed—an important fact when considered with the history of the frog's egg and the needle—that "brushing" the unfertilised eggs of the silkworm and other moths, that is to say, gently polishing the little egg-shells with a soft camel's-hair brush, has the effect of starting development. Taking two lots of unfertilised eggs adhering to slips of paper, as laid by the mother moth, it is found that those gently brushed will hatch, whilst those not brushed will either not hatch at all, or in very small number. The brushing seems to disturb the equilibrium of the protoplasmic egg-cell within the egg-shell just sufficiently to set it going—going on its course of division and development. The only other case of "artificially-induced parthenogenesis" at present recorded is that of the common frog, due to M. Bataillon. There are questions of great interest still to be made out as the result of his discovery. Can the fatherless brood be reared to maturity and again made to yield a fatherless generation? What is the precise structure of the nuclei of the cells which originate from the nucleus of the egg-cell only, and not from a nucleus formed by the fusion of that with a sperm-cell nucleus? These and similar questions are the motive of further careful study now in progress.
The important conclusion is forced upon us by these experiments with a needle, that even in so typical and highly organised a creature as one of the higher or five-fingered, air-breathing vertebrates, the egg-cell does not require any material admixture from the sperm-cell in order that it may successfully germinate and develop, but only a disturbance of equilibrium, which can be administered as well by a needle's point as by a sperm-filament! Yet the whole process of sexual reproduction undoubtedly has, as its origin and explanation, the fusion in the first cell of the new generation from which all the rest will arise, of the material of two distinct individuals. Thus the qualities of the young are not a repetition of the qualities of one parent, nor are they a mere mixture of the qualities of both parents (for contradictory qualities cannot mix). They are a new grouping of qualities comprising some of the one parent and some of the other and hence a great opportunity for variation, for departure from either parent's exact "make-up," is afforded, and for the selection and survival of the new combination. It is, it would seem, only in exceptional cases and for limited periods that uni-sexual or fatherless reproduction can be advantageous to a species of plant or animal. Such cases are those in which abundant food, present for a limited season, renders the most rapid multiplication of individuals an advantage to the species. But after this exceptional abundance has come to an end, the more usual process of reproduction by fertilised eggs (also necessary and advantageous for the preservation of the race by "natural selection in the struggle for existence" of the new varieties so produced) is resumed until again the abundant food is present, as in the annual history of plant lice and the plants on which they feed.
FOOTNOTES:
[Footnote 7: "Science from an Easy Chair," Methuen & Co., 1910.]
CHAPTER XIV
PRIMITIVE BELIEFS ABOUT FATHERLESS PROGENY
In the preceding chapter I related the curious and exceptional cases of "fatherless reproduction" by means of true egg-cells, those cells of special nature produced in the organs called "ovaries," present in all but the simplest animals and plants. These egg-cells are usually, with elaborate sureness and precise mechanism after liberation from the ovary, fertilised by (that is to say, fused with) the complemental reproductive cells—the sperm-filaments—produced by other individuals, the males.
But we must not forget—and, indeed, one should not enter on the consideration of this subject without a knowledge of the fact—that vast numbers of animals and plants reproduce themselves "asexually," as it is termed, namely, by breaking-off or separating buds, branches, or other good solid bits of their structure which, when thus separated, are capable of individual life and growth. Thus plants very largely multiply, using this method in addition to the sexual method of egg-cells and sperm-cells. One may take "cuttings" from plants and rear them, and plants also "cut" or detach such bits themselves, in the form of runners, of dividing bulbs, of bulbules, and such reproductive growths seen on the lily, on the viviparous, alpine grass, and many other plants. Even a bit cut off from the leaf of a plant (for instance, a begonia) will sprout, root itself, and grow into a completely formed and healthy individual. Animals, too, such as polyps or zoophytes, and many beautiful and elaborate worms, multiply by "fission," dividing into two or more parts, each of which becomes a complete animal. This process is not seen in any fish, amphibian, reptile, bird, or mammal, nor in molluscs, nor in insects, crustaceans, myriapods, and arachnids (spiders and scorpions). It is almost wholly confined to lower animals (worms and polyps) and to plants, and hence is often called "vegetative reproduction." The most remarkable case of its appearance among higher forms is that of the marine Ascidians, or tunicates—close allies of the true vertebrates—where reproduction by budding and the formation of wonderfully elaborate star-like forms produced by budding and the cohesion of the budded individuals as one composite individual are well known. Their beautiful shapes and colours have been reproduced in hundreds of exquisite pictures by our great artist-naturalists. We thus have to recognise that there are two distinct kinds of reproduction in living things. One is "asexual," by means of division or separation of large or special masses of their existence, made up of ordinary tissue cells. Co-existing with this, often in the same individuals, is the other method, the "sexual," by means of detached egg-cells and sperm-cells which are thrown off from the parents, and do not (except in rare instances) proceed to develop unless the egg-cell is "fertilised" by the fusion with it of a sperm-cell.
The whole subject of the reproduction of animals and plants was, until the introduction of the microscope, involved in obscurity and mystery. The Greeks and Romans had necessarily very imperfect and erroneous notions on the subject, and it was not until 300 years ago that William Harvey, the discoverer of the circulation of the blood, declared, as a general law, that every living thing is born from an egg. During that 300 years his conclusion has been examined and modified, corrected and expanded, and the microscope has at last enabled us to see and follow the excessively minute particles and structures by which sexual reproduction is effected. Harvey's dictum was a step in advance when it was made, for previously the belief was current that living things were "bred" in all sorts of queer ways. It was supposed that the putrefying flesh of a dead animal actually was converted by a sudden process into maggots, and that rotten wood would breed, out of its own substance, ships' barnacles and even young geese and mice—an opinion contested only 200 years ago by Sir Thomas Browne! No difficulty was felt in admitting that whole swarms of insects, fishes, and even herds of larger beasts were spontaneously generated from mud, from putrid matter, or from the waters of the sea. That, indeed, was the popular notion set forth by the poet, John Milton, as to the mode in which living things were "miraculously" brought into existence at the beginning of things by the "fiat" of the Creator. What more probable than that such a creation should still be, here and there, at work? However, not three centuries ago, actual experiment gradually convinced the learned that maggots are bred in a dead body only from the eggs laid by parent flies, as shown by the Italian Redi in 1668 who found that no maggots were bred when he simply excluded the flies from access to the dead body by covering it with wire gauze, but that the blow-flies swarmed on the gauze and vainly laid their eggs on it! It was only gradually recognised that birth by means of eggs or germs extruded from parental organisms of the same history and character as their offspring is the explanation of all such swarms of flies, worms, and even mushrooms and moulds as had been formerly ascribed to a mysterious power of breeding these organisms possessed by inanimate dirt and refuse.
In spite of this progress in knowledge the belief in "spontaneous generation" of such excessively minute organisms as the bacteria and yeasts was general until Theodore Schwann in 1836 performed with them just the same experiment as Redi had performed with blow-flies in 1668. He showed that if a putrescible liquid (for instance, soup) were boiled in a retort so as to destroy all germs, and then the open neck of the retort was kept heated in a flame, so that no floating germs could enter alive, the soup did not putrefy, and no bacteria or other organisms appeared in it. The old notions, nevertheless, survive to this day. Peasants, fisher-folk, and even uneducated wealthy countrymen cling to them with the confidence arising from profound ignorance. And occasionally a man of some scientific training and knowledge astonishes the world by a futile attempt to show that the old fancies were true in regard, at any rate, to the lowest microscopic forms of life. But these are but the echoes of the past; we do not believe nowadays in "spontaneous generation," nor in sudden transformations of lower into higher forms of life. The doctrine, "omne vivum e vivo"—every living thing (in the present condition of our earth) is born from a living thing—is now held by scientific investigators as a reasonable generalisation of experience.
On the other hand, Harvey's dictum, "Every living thing comes from an egg," is only true in a limited sense, namely, that whilst the individual among most larger animals and plants is always traceable to an egg-cell detached from a parental individual of a like kind of species, there are whole groups and series of lower animals and most plants in which the individual born or "developed" from an egg-cell does not proceed when grown to full size to reproduce in turn by eggs and fertilising sperms, but divides into two or more individuals or gives off detached buds or reproductive bulbs, which become separate individuals, and only after these and several successive generations of individuals have been thus produced "asexually," by fission or by budding, does a generation appear which produces true egg-cells and sperm-cells and reproduces by their means. Thus it is true that the individuals "budded off" or separated by fission from an asexual parent can be ultimately traced through one or more generations of previous asexual parents to an egg-cell produced and fertilised in the regular way, and with this important modification Harvey's dictum is justified. These facts and the wonderful histories of the animals and plants in which egg-and-sperm-producing generations "alternate" with generations which multiply by fission and budding have only been worked out in detail and by the aid of the microscope during the great century of scientific discovery which lies just behind us. Often the two generations, reproducing, the one by fission, the other by egg and sperm-cells, are alike in appearance, but often they are very different, and have naturally been supposed at first to have nothing to do with each other.
Thus some of the little "coralline polyps" and other most beautiful little marine flower-like polyps attached to rocks, weeds, and shells in the sea reproduce by budding and division. But after a period of such growth and such budding they produce on their stalks—jelly-fish! These jelly-fish are budded and thrown off by them, as glass-like swimming bells, which lead an independent life, seize prey, nourish themselves, and grow to a size varying from that of a sixpence to that of a cart-wheel. These "bells" are commonly known as "jelly-fish." They discharge thousands of egg-cells into the sea and fertilise them with sperms! From those fertilised eggs grow young polyps, which fix themselves to rocks or weeds, and grow up to bud and multiply by fission, and eventually to produce again by fission a generation of jelly-fishes! Such a marvellous history of alternating modes of reproduction has been discovered, and described in greatest microscopic detail and with most ample pictorial representations of all the minutest structures of the organisms studied, not only in many marine polyps, but also in the case of many parasitic worms, such as the tape worms and the liver-flukes. Some of the most fascinating cases, on account of the beauty of the little creatures concerned, are found amongst the surface-swimming Ascidians of the sea—the glass-like Salps. But our common ferns and mosses also show this same alternation of sexual and sexless generations, the two generations differing greatly in size, form, and structure from one another, whilst the whole story of "flowers" and their structure is bound up with a wonderful "telescoping" or rolling of the two generations (sexless and sexual) into one plant!
It was not until long after Harvey's time that these things were understood, and there was every excuse—in the absence of observation of the facts, especially those yet to be revealed by the microscope—for the erroneous suppositions and explanations which were formerly entertained as to the mode of reproduction of the less familiar plants and animals. If we go back to the starting-point of European science, to the great Aristotle, we find that he had formed singularly correct conclusions as to the reproduction of the larger kinds of animals, though he knew nothing about "sperms," having no microscope, and only regarded the fluid produced by male animals as exercising a fertilising effect on the eggs, which in many instances are large enough for anyone to see. But, of course, he could not have any knowledge of the egg-cell, nor does he say anything about the reproduction of plants. Later, however, the sexuality of flowering plants was taught by his pupils, and at the time of the Roman Empire there was a very definite belief among learned men (such as Pliny) that the larger plants and animals reproduce by eggs or by seeds produced by the females which require to be "fertilised" by a product formed in the males—the spermatic fluid in the case of animals and by the pollen in the case of a few flowering plants (e.g. the date-palm). But there was no idea of holding this as a general and universal law. From Pliny to Harvey and later, those who concerned themselves with natural history accepted without difficulty any strange accounts or appearances as to the reproduction or the sudden production in fanciful and astonishing ways of the lower and smaller animals and plants. They did not expect these inferior creatures to have the same methods of reproduction as the higher and bigger creatures. It is only now, since the later years of the nineteenth century, that we are able to show that all animals and plants, even the minutest microscopic kinds, reproduce by the formation and separation of egg-cells, and that these egg-cells are (in all but a few exceptional cases) fertilised by sperm cells, which are smaller than the egg-cells, and usually provided with active swimming filaments.
Not only did our mediaeval ancestors believe all sorts of fancies as to the propagation of lower animals and plants, but they were quite prepared to accept stories as to reproduction in the case of higher animals, and even in mankind, by irregular methods, such as parthenogenesis, or the defect of an ordinary male parent. In the Middle Ages in Europe, and earlier in the East, the belief in the frequent occurrence of the birth of a child which had no human male parent was common. It was, so to speak, an admitted though irregular occurrence. A very curious thing is that when such cases were supposed to occur, they were not ascribed to any natural process such as we now recognise in the "parthenogenesis" of insects and crustaceans, but to the visitation of the mother by a spirit—a floating, volatile demon or angel (known as an "incubus" in the Middle Ages) beneficent or malicious as the case might be. Stories of the nocturnal visits of these mysterious ghostly "incubi" are on record in great number and variety, both in European and Oriental tradition and legend. There seems to have been a readiness to believe the theory of paternity from among the hidden world of goblins, fairies, and sprites which was very naturally made use of by a woman and her relatives when she could not produce the father of her child.
We come across examples of such beliefs in invisible agents of paternity even among the more cultivated Romans. Thus Virgil in his "Georgics" cites as a fact that mares are fertilised by the wind. His words are given on the next page.
It is now known that, quite apart from any motive of concealment of the true paternity of their offspring, some of the native tribes of Australia have the belief that, as the regular and normal thing, children are begotten by strange fairy-like spirits which haunt the rocks and trees of certain localities and enter the future mother as she passes by these haunted rocks and trees. These Australian "black fellows" hold that the human father counts for nothing in the matter. The belief of these Australian savages is referred to by writers on the subject (Mr. Andrew Lang and others) as "the spiritual theory of conception." There are some reasons for thinking that this curious theory and the accompanying ignorance as to the natural causes of conception were widely spread among primeval men. The fact that most trees are fertilised by the wind (which carries to their female flowers the invisible powder, or pollen, of the male flowers, conveyed in the case of smaller plants which have gay-coloured flowers by bees and butterflies) may have been noticed by primitive man, and have started the belief that there are fertilising spirits or demons in the air. However the fancy arose, it is only a parallel to the strange fancies as to spontaneous generation of all sorts of animals and plants current 200 years ago among civilised men. And, further, it is worth noting that the uncanny belief in the "incubus" which was generally prevalent in the Middle Ages may possibly be considered as a survival in (or incursion into) Europe of the primitive spiritual theory of all human conception, and of the fertilising activity of the haunting spirits of the air which was held by primeval man, and is still found in full force among the Arunta tribes of Australia.
"Ore omnes versae in Zephyrum stant rupibus altis Exceptantque leves auras et saepe sine ullis Conjugiis vento gravidae, mirabile dictu."
Georgic iii. 275.
(Facing the west on lofty rocks All stand and sniff the buoyant breeze And often—marvellous to tell— Without conjunction with a sire, Bear young engendered by the wind.)
CHAPTER XV
THE PYGMY RACES OF MEN
The tradition of the existence of dwarfs, not as isolated examples, but as a race with their own customs, government, and language is familiar among civilised people, and exists among scattered and remote savages. We have all heard of them in that treasury of primitive beliefs—the nursery. Therefore, the fact that there are at this moment in various parts of the world dwarf or pygmy tribes of men, living in proximity to but apart from those races which have a stature identical with our own, has a great fascination and interest. Some few races of men have an average height of an inch, or thereabouts, greater than that of the people of the British Islands, whilst some are shorter by as much as two or three inches. But, on the whole, it may be said that, putting aside the pygmy races, of which I am about to write, mankind generally does not show a very striking range of normal stature—the mass in any race or region of the globe varying from 5 ft. 4 in. to 5 ft. 8 in., and tending to the higher rather than the lower figure.
The pygmy races are sharply separated from normal mankind by as much as a foot, and even more, in average stature, ranging from 4 ft. to something less than 4 ft. 11 in. in height. They are, enumerating them in the order of their purity of race and completeness of their isolation: (1) The Mincopies, or Andaman Islanders; (2) the Congo pygmies (comprising the tribes known as the Akkas, or Tiki-Tikis, the Bambutis, the Watwas, the Obongos, and Bayagas); (3) the bushmen of South Africa; (4) the Aetas of the Philippine Islands; (5) the Samangs of Malacca, and very similar isolated pygmy tribes which have been observed in New Guinea, and also in the Solomon Islands and in Formosa. The Veddas of Ceylon, the Senois of Malacca, and the Toalas of Celebes are apparently races which have resulted from the "crossing" of true pygmies with other normal-statured races inhabiting the islands in which they are found. The Brahouis of Beloochistan and the "monkey-men," or Bandra-Loks, east of the Indus, appear also to belong to the pygmy race.
Next to their agreement in small size, the most interesting facts about the pygmies we have just enumerated is that, notwithstanding the wide area over which they are found in scattered, isolated communities—viz. from the Congo to South Africa on the one hand, and, on the other hand, from Central Africa to the Indian Ocean, and on to New Guinea, the Philippine Islands, and Formosa—yet they all have short, round skulls of full average brain capacity, and have their hair growing in tightly curled-up peppercorn-like tufts—two characters found combined in no other race. They usually have finely-developed, straight foreheads, and the jaws do not project strongly; the lips are usually fine and thin, and the nose, though very broad, is not always greatly flattened. They are well-shaped, well-proportioned little people, neither grotesque nor deformed. To a great extent their corporeal features suggest an infantile or child-like stage of development, and the same is true of their intellectual condition and of their productions. Their habitations are very primitive, either caves or low clay-made huts, of the shape of half an egg. They do not make pottery, and neither keep herds nor till the ground, contenting themselves with such food as wild fruits and roots and the animals they kill with spear or arrow or capture in traps. They do not mutilate or bedaub their bodies (though the Andamanese indulge in a kind of "tattooing"). Among them the struggle for life does not exist in its more brutal forms. They take care of the sick and feeble, the children, and the old people. Cannibalism is unknown amongst them; they punish murder and theft. They are honest, and, moreover, are monogamous, and punish adultery, which is rare among them. Their religion is remarkably simple. It is limited to reverence for a Supreme Being, without any offering of sacrifice, and they do not worship ancestors nor exhibit the superstitions known as "animism." It has been argued that these characteristics, taken together, indicate a primitive condition of humanity. On the other hand, many writers regard them as degenerate offshoots of negro-like races of larger stature and more complicated mental development.
There is no name by which the whole series of these small-sized people is indicated excepting the ancient designation of "pygmies." Many careful students of human races separate the pygmies of Africa as "negrilloes" from the pygmies of Asia, whom they designate "negritoes," and it is held that the negrilloes (Congo pygmies and bushmen) hold the same relation to African negroes and Zulus as the negritoes (Andamanese, and scattered tribes in New Guinea, the Philippines, Formosa and the Solomon Islands, as well as in Malacca and Annam and in the north-west and in other parts of Hindustan) hold to the full-sized, frizzly haired Papuans. This, no doubt, is a convenient way of stating the case, but the important fact remains that the pygmies of purest race, both of Africa and Asia, have the remarkable characteristics in common which we have noted above. Their bodily and mental peculiarities certainly suggest, whether the suggestion can be verified or not, the former existence in the tropical regions of Africa and Asia of a widely spread pygmy race of uniform character, a race which has been, to a large extent, destroyed by other races of larger and more powerful individuals, but has also in many regions (especially on the Asiatic Continent) intermarried with the surrounding larger people, and given rise to hybrid races. At the same time, it seems that in other regions this race has, by isolation in forests and mountain ranges and by the exercise of special skill in the use of poisoned arrows and in the arts of concealment, evasion, and terrorising, succeeded in maintaining its existence and primitive independence dating from remote prehistoric times.
Whether we regard the pygmies as one race or as the result of local modification of larger races, it is noteworthy that they are of lighter tint than the black races close to or among whom they live. Some, both of the African and Asiatic pygmies, are very dark brown—practically black—but many are of a paler and yellowish tint. We must not forget that the babies and quite young children of negroes are nearly "white." The Asiatic pygmies, notably the Andamanese, are darker than their African fellows. It must necessarily be difficult in studying such a race to make due allowance not merely for admixture of blood from surrounding populations, but to estimate correctly what the little people have learnt in the way of art and habit from their neighbours and what is their own. The Andaman Islanders, though provided with metal by trading, still use the sharp-edged splinters of volcanic glass-stone to shave their heads, which they keep entirely bald!
It is one of the merits of the showman's enterprise in modern times that he brings to a great city like London groups of interesting savages, without imposture and without ill-treatment, and enables us to see and talk with them almost as though we had travelled to their remote native forests. It would certainly be a successful and worthy enterprise on the part of the Anthropological Society of London to start a garden and houses such as those maintained by the Zoological Society, but arranged so as to receive some five or six groups of interesting "savages." The society would be responsible for careful and humane treatment of their guests, and return them after a sojourn, say, of a couple years, to their native country and replace them by specimens of other races. Under the auspices of showmen I have seen Zulu Kaffirs, Guiana Indians, North American Indians, Kalmuck Tartars, South African bushmen, and Congo pygmies in London, besides many hundreds of African negroes of various tribes. Farini's bushmen and Harrison's Congo pygmies were perfect samples of the dwarf race about which I am writing. But I also saw and examined carefully, in 1872, at Naples, with my friend Professor Panceri, the two African pygmies, Tebo and Chairallah, who were the first to reach Europe. They were subsequently adopted by and lived for some years under the care of Count Miniscalchi Erizzo. They were very intelligent, and learnt to read and to write well, and to play difficult music on the piano, with feeling and appreciation. We were especially concerned to determine by the stage of growth of their teeth and other indications whether they were merely ordinary young negroes, as some anthropologists supposed, or really representatives of the dwarf race as asserted by the traveller Miani, who bought them, in exchange for a dog and a calf, in the country of the Mombootoos, south of the Welle River, and west of the Albert Nyanza. They were still young and growing when we examined them, but Tebo ceased growth when he had reached a stature of 4 ft. 8 in. We had no difficulty in coming to the conclusion that they were, when we saw them, really of exceptionally small stature for their age as indicated by the teeth which were in place in their jaws.
The Akkas living near the sources of the Nile were known to the ancient Egyptians, and were the foundation of stories and fabulous exaggerations among the ancient Greeks. Even before Homer these stories existed, and the little people were called "pygmies," which means "of the length of the forearm" (Greek, pugme). Homer refers to the wars of these pygmies with the cranes, and as a matter of fact the African pygmies do wage a kind of war upon the great cranes which swarm in the marsh-land of their country. Naturally enough the really small size of the African pygmies (they are about 4 ft. in height, some two or three inches less, some as much as eight inches more) was exaggerated by report and tradition, just as the really big eggs of the great extinct ostrich-like bird of Madagascar were represented in the story of Sindbad, in the "Arabian Nights," as being as large as the dome of a temple, and the bird large in proportion. The Egyptians, as we have seen, knew the pygmy Akkas, and Egyptian fact was ever the romance of the Greeks.
Herodotus mentions the African pygmies from beyond the Libyan desert, citing, as is his wont, the accounts of certain travellers with whom he had conversed, and a later Greek writer tells of a pygmy race in India, a statement which our present knowledge confirms. It is a curious fact that Swift's Lilliputians are thus traceable to the Central African dwarf race, for Greek legend related that Hercules visited the country of the pygmies, where on waking from sleep he found one division of the army guarding his right leg, another his left, and others his arms. Hercules got up, swept them all into the lion's skin which he used as a cloak, and went on his way, shaking out his small tormentors from their prison as though they were so many ants. It seems fairly certain that Swift derived the initial scene in his story of Gulliver's adventures among the Lilliputians from this legend.
Miani's pygmies were members of a tribe discovered by the distinguished traveller Schweinfurth, who, in 1870, was the first to visit the country of the Niam-Niam, to the west of the sources of the Nile, and had the honour of showing that the myths of the ancient Greeks as to a nation of pygmies were based on fact, and that the definite words of Aristotle as to the existence of these pygmy people on the upper reaches of the Nile were correct. Schweinfurth found to the south of the Niam-Niam country a tribe of full-statured negroes called the Mombootoos, whose chief, Moonza, kept close to the Royal residence a colony of pygmies who were called in that country by the name "Akkas." Schweinfurth ascertained that they are spread to the number of many thousands along the borders of the great Congo forest and form numerous tribes. They are very generally well treated by their more powerful neighbours, as by Moonza. Partly from fear of their poisoned arrows and their crafty methods of attack and subsequent disappearance into the forest, partly on account of a superstitious dread of them, the Congo pygmies are not only tolerated, but protected, by the larger people. They alone are at home in the steaming darkness of the immeasurable forest into which no other natives dare to enter.
It is a remarkable fact that the Egyptologist Mariette had, before these discoveries, found on an ancient Egyptian monument the portrait of a dwarf inscribed with the word "akka"—the identical name by which they are known at this day in the region where Schweinfurth found them.
Public interest in the pygmy race was rearoused three years ago by the announcement that the party of English naturalists at that time exploring the interior of New Guinea had come across a tribe of these little people in the mountains of that island. The existence of these pygmies in New Guinea was already well known, but fuller accounts of them will be valuable. The Italian traveller Beccari, in 1876, speaks of them as "Karonis," and states that they occupy a chain of mountains parallel to the north coast of the north-west peninsular of the island. D'Albertis, Lawes, and other travellers have seen and described individuals of the pygmy race of the mountains of New Guinea. It is interesting to find that they are described as having the body covered with fine, woolly hair, a feature which is recorded by Schweinfurth, by Stanley, and by an ancient Greek writer, in regard to the Congo pygmies of Africa, and led in former times to the notion that the old traditions and accounts of African pygmies referred, not to human beings, but to chimpanzees!
The Laplanders are the only very small-sized people in Europe, but they run from 5 ft. upwards, whereas the negrites and negrillos run from about 4 ft. to less than 5 ft. The Lapps (of whom there are about 25,000 in Finmark and Lapmark) are a thick-set, round-headed (brachycephalic), dark-yellow race, and have always been credited with powers of witchcraft and magic by their neighbours and by modern sailors. They live in immediate contact with the Finns (both are Mongolian races), who are very tall and have fair hair and blue eyes. Some writers have supposed that the Lapps are the remnants of a small race which was formerly spread over the whole of Europe, and was exterminated or driven out by the larger races. But we have no evidence in favour of this view and strong evidence against it, since we now know the skulls and skeletons of a great number of the prehistoric inhabitants of Europe belonging to the Bronze, to the Neolithic, and to the Palaeolithic periods. None of these skeletons belong to an abnormally small-sized race, though the Bronze-age people were smaller than their predecessors and successors. The cave-dwellers of the "reindeer" epoch of the Palaeolithic period were big men, with fine, high skulls, and even the earlier Palaeolithic men of the glacial period, the man of the Neanderthal, the couple from Spy, and the three recently dug up near Perigueux (of whom I have written in another book),[8] were not diminutive men. It is true they were not tall—only about 5 ft. 4 in. in height—but they were very powerful and muscular, and totally different physically from the Lapps or from any of the tropical pygmy men. It is a remarkable fact that in one cave at Mentone, on the Riviera, explored by the Prince of Monaco, two skeletons have been found belonging to a shortish negro-like race (indicated by the form of the skull), and apparently a little later in date than the Neandermen. We must remember that at that remote date there was continuous land connection between Europe and Africa. There is, in fact, no reason to suppose that a pygmy race ever existed in Europe, though, of course, individuals of exceptionally small stature are often produced, and in some regions the whole population is shorter than it is in others.
* * * * *
A very interesting question in connection with the origin and significance of pygmy races of men is, "Why is any race smaller in size than another?" Every species among the higher animals has its standard size from which only in the rarest cases are there departures. That in itself is a curious fact. How was the standard size determined, and how is it maintained? The whole question lies there. At first sight it seems to many people quite simple to account for "pygmies"; they will tell you that the poor creatures are half-starved and so unable to grow to full size. That explanation does not, however, meet the case, for the African and Asiatic pygmy races are just as well nourished as most of their neighbours. Also if we look a little further we find that the women of every race are smaller than the men, and often much smaller. That is not because they are ill-nourished as compared with the men. And, again, we find very closely similar species of animals existing side by side, one a large species and the other a small one, having the same opportunities of obtaining regular nourishment. There are many instances, but take for example the beautiful Great Koodoo antelope of Africa, with its fine spiral horns, which measures 5 ft. at the shoulder, and the Little Koodoo, a complete miniature of it existing alongside of it, and standing only 3 ft. 5 in. at the shoulder. Take the two common white butterflies of this country, the Large White and the Small White, also the Large Tortoiseshell butterfly and the small. Take the instance of many plant genera of which larger and smaller species are found growing side by side. The difference in size in these cases cannot be traced to any insufficiency of nutrition in the smaller kind.
It is evident that difference of size in animals has some deep-lying cause, which is not merely the greater or less abundance of food. Numerous specimens of a perfectly well-formed elephant, closely allied in structure to the Indian elephant, but only 3 ft. high, are found fossil in Malta and the neighbouring Mediterranean region, and in Liberia a species of hippopotamus, distinct from that of other African regions, is common, which is not bigger than a common pig. Pygmy hogs, pygmy deer, pygmy buffaloes (and many other pygmy animals) are known as thriving wild species, so that it seems clear that there are other causes at work than semi-starvation in the production of pygmy races.
A second suggestion which is sometimes made is that the smaller race, or smaller species of two allied forms, is the original one, and that the larger forms have developed from these and established themselves, without completely destroying the smaller original race. This view has at various times been favoured in regard to the pygmy race of man. There is something plausible in the view that these little men are nearer than normal mankind are to the monkeys, and the fur-like hairiness of their skin has been cited in support of it; but a fatal objection is that the men of the pure pygmy race of Africa and Asia are really not more, but less, monkey-like than many full-sized savages. They have heads and faces nearer in shape to those of Europeans than have the Australians, the Tasmanians, and the negroes. They are more intelligent, shrewd, and skilful than their full-sized neighbours. It is quite possible that they are a very ancient race—more ancient, in their isolation and freedom from complicated customs, habits, and mode of life than other savages—but they are not primitive in the sense of being ape-like in structure or in want of mental capacity.
A third possibility in regard to the pygmy people is that they have been "selected" by natural conditions which favoured the survival of small individuals, and thus established a small race—just as man has established small races of horses, dogs, cattle, or what not, by continually selecting small individuals for breeding, until he has produced such races as the Shetland pony, the toy terrier, and the Kerry cow. It is necessary to discover or to suggest (if this explanation is to be accepted) what precisely is the advantage, in a state of nature, to a small-sized race in being of small size. The guess is made that the small people can more easily hide, whether in forest or among the rocks and caves of mountainous regions, from aggressive larger-sized mankind. The objection to this view is that though it may explain the present habits and dwelling-places of some of the pygmy race, it is not capable of explaining their first segregation and formation as a distinct race. Another general advantage which small animals have over larger ones of the same species is that if the food of the species is widely distributed but limited in amount, a hundred individuals weighing 5 st. each will secure more of it than fifty individuals weighing 10 st. each. The total weight of individuals is the same, but the smaller series will cover twice the area and have twice as much opportunity to secure the limited amount of food, whilst, in proportion to their size, requiring less. It cannot be doubted that, other things being equal, this obvious relation must tend to limit the increase in size of animals which have to search for their special food, and must favour small races.
Some writers have supposed that small limited areas, such as small islands, favour the production of small races by some mysterious law of appropriateness similar to that which lays down that "who drives fat oxen should himself be fat." The pygmy buffalo of the island of Celebes, the Anoa, is cited as an instance, and the pygmy men of the Andaman Islands as another. But there are plenty of facts which would lead to an exactly opposite conclusion. Gigantic tortoises are found in the Galapagos Islands and in the minute islands of the Indian Ocean, and never on the big continents. Gigantic birds bigger than ostriches abounded in the islands of New Zealand and Madagascar. Some of the tallest races of men are found in the Pacific islands, whilst the tallest European population is that of the north of the island called Great Britain. Probably the real relation of islands to the matter is that owing to their isolation and freedom from the general competition of the vast variety of living things in continental areas, they offer unoccupied territory in which either exceptionally small or exceptionally big races may flourish—if once they reach the island shelter, or are by variation produced there—without competitive interference.
An important consideration in regard to the formation and segregation of a human variety or race is that mankind shows a tendency to segregate in groups, like with like. To a large extent this is true also of animals, but in man it acquires a special dominance, owing to the greater activity in him of psychical or mental influences in all his proceedings. The "cagots" of mid-France are the descendants of former leper families. They remain separated from the rest of the population, and do not now know why, nor do their hostile neighbours. Such "outcast" or "accursed" tribes and family groups are found also in Great Britain, and throughout the world. Possibly the "pygmies" owe their preservation to this tendency. Virchow regarded the Lapps as a race produced by disease—a pathological product. It is possible that former liability to disease and present immunity from it is the final explanation of the tropical pygmy race. In the United States black pigs are able to eat, without harm, a common marsh herb, the "Red-root" Lachnanthes tinctoria, which kills other pigs. Hence a black race is established, not because it is black, but because, in it, blackness is "the outward and visible sign of an inward and chemical grace"—that is to say, of a physiological or chemical power of resistance to, and immunity from, the poison of an otherwise nutritious plant. Such "correlations" were described by Darwin, and are of extreme importance and interest—far more so than is, at present, recognised by naturalists. I am inclined to the supposition that the obvious outward signs, the round head, bombous forehead, furry skin, and diminutive size of the pygmies are the outcome of an inward physiological condition peculiar to them, which has enabled them to resist disease or to eat certain kinds of food, or possibly to develop great mental acuteness, and so has led to the establishment of these peculiar small people as a race, without their smallness itself having anything to do with their selection and preservation. In that case smallness would be a "by-product," a "correlated" character, not the "effective life-saving" character.
FOOTNOTES:
[Footnote 8: "Science from an Easy Chair," Methuen, 1909.]
CHAPTER XVI
PREHISTORIC PETTICOATS
After the last great extension of glaciers in Europe, during which nearly all of Great Britain and the North of France and Germany were buried with Scandinavia under one great ice-sheet—and when this ice-sheet had receded, and the climate was like that of the Russian "steppes," cold and dry—there were men inhabiting the caverns on both sides of the Pyrenees. The tract of land which we call "Great Britain" was a part of the Continent of Europe. There was no "English Channel." The Thames and the Rhine opened by a common mouth into the North Sea. The mammoth and the hairy rhinoceros still lingered on in France and the more central regions of Europe. Wild horses, the great ox (Aurochs), the bison, ibex, chamois, were abundant, and the thick-nosed Saiga antelope, now confined to the Russian and Asiatic steppes, was present. The most abundant and important animal immediately north of the Pyrenees was the reindeer. The cave-men of France and Central Europe were a fine race—living by the chase, and fabricating flint knives and scrapers, fine bone spearheads and harpoons, as well as occupying themselves in carving ivory and reindeer antlers, so as to produce highly artistic representations of the animals around them.
They rarely attempted the human face or figure, and when they did were not so successful as in their animal work. They also painted on the walls of some of their caverns, with red and yellow ochre, carbon, and white chalk representations—usually about one-third the size of nature—of some of the most important animals of the chase. They must have used lamps, fed with animal fat, to illuminate the walls, both when they were at work on the pictures and also afterwards, when they exhibited the finished pictures to the less gifted members of the tribe, as wonderful, even magical appearances. It is uncertain to what extent races of men succeeded one another or were cotemporaries in this period in Europe, but there is good reason for attributing the cave pictures to an early occupation of the caves by men who also carved, in ivory and stone, small figures of women resembling the Hottentot Venus—whilst the later occupants made no such statuettes, but carved in relief on bone or engraved it.
This was probably not less than 50,000 years ago, and may well have been much more. Earlier than the date of these Reindeer men (the Magdalenians, Solutrians and the Aurignacians[9]), in the preceding cold, humid period of the glacial extension (probably from 80,000 to 150,000 years ago) these and other caves were occupied by an inferior race—the Neandermen. They could not carve beasts on ivory nor paint, but could make very good and well "dressed" flint weapons, and could make large fires in and about the caves, both to cook their meat and to keep off the wild beasts (lions, bears, and hyenas), who contended with the strange, low-browed Neandermen for the use of the caves as habitations.
On this side of the Pyrenees the Reindeer men have left some wall-pictures, and new discoveries of great importance in the form of rock carvings of human figures as well as pictures and huge figures of horses, etc., are being made in France as I write these lines. But the best preserved and most numerous wall pictures are those of the cave of Altamira near Santander. These comprise some partially preserved representations in yellow, red, white, and black of the great bison, the wild boar, the horse, and other animals. A group representing some twenty-five or more animals (each about one third the size of nature), irregularly arranged, exists on a part of the roof, and others are found in other parts of the cavern. Among the wall-pictures made by ancient cave-men are numerous drawings of human beings in masks representing animals' heads—probably indicating the "dressing-up" in animal masks of priests or medicine men in the way in which we know to-day is the custom among many savage tribes. Twenty-seven of these "decorated" caverns were known in 1910—eleven in Spain, one in Italy, and fifteen in South and Central France—and others are continually being discovered. The most careful and critical examination by scientific men leaves no doubt as to the vast antiquity of these paintings, and as to their dating from a time when the animals painted (including in some cases mammoth and rhinoceros, as well as bison, reindeer, wild boar, ibex, red deer, bear, and felines) were existing in the locality. The covering up of some of the drawings (which are partly engraved and partly painted) by earthy deposits and by encrustations of lime, and the presence in the cave deposits of the worked flints and bones characteristic of the Reindeer men, leave no doubt that these pictures are of that immense antiquity which we express by the words "Quaternary period," "Upper Pleistocene" or "Reindeer epoch."
It is, of course, only in accordance with what one would expect that these pictures are of very varying degrees of artistic merit. But some (a considerable number) are quite remarkable for their true artistic quality. In this respect they differ from the rock paintings of modern savage races—the Bushmen of South Africa, the Australians, and the Californian Indians—with which, however, it is instructive to compare them. Many of them agree in their essential artistic character with the carving and engraving of animals on bone and ivory so abundantly produced by the later Reindeer men. It is also the fact that these Franco-Spanish wall paintings were executed at different periods in the Reindeer epoch. Some are more primitive than others; some are very badly preserved, mere scratched outlines with all the paint washed away by the moisture of ages; but others are bright and sharp in their colouring to a degree which is surprising when their age and long exposure are considered. The French prehistorians, M.M. Cartailac and the Abbe Breuil, have produced a sumptuous volume containing an account, with large coloured plates, of the best preserved of the Altamira paintings—a copy of which I owe to the kindness of H.S.H. the Prince of Monaco, who has ordered the publication of the work at his own charges. This has been followed by an equally fine work under the same auspices, illustrating the wall-pictures of the Cavern of the Font-de-Gaume in the Dordogne, for which we have to thank the Abbe Breuil. A further volume on Spanish Caves has also appeared from the same source in the present year. It is not surprising that the country folk, who, in some of the Spanish localities, have known the existence of these paintings from time immemorial, should regard them as the work of the ancient Moors, all ancient work in Spain being popularly attributed to the Moors, as a sort of starting-point in history. It is, however, very remarkable that little damage appears to have been done by the population to the paintings, even when they exist in shallow caves or on overhanging rocks. No doubt weathering, and the oozing of moisture, and the flaking caused by it, has destroyed most of the Pleistocene paintings which once existed, and it is an ascertained fact that some—for instance, those of Altamira—are breaking to pieces owing to the opening-up and frequentation of the caverns.
It has been remarked that, although these paintings belong to what is called the "reindeer epoch," yet in the cave of Altamira there are no representations of reindeer, but chiefly of bison and wild boar. It is also remarkable that in the case of the painted rock shelters of Calapata (Lower Aragon) and of Cogul (near Lerida, in Catalonia), no reindeer are represented; but on the former there are very admirable drawings of the red deer, and on the latter silhouettes of the bull, of the red deer, and the ibex. In fact, no representations of reindeer have been observed on cave walls or rock-shelters south of the Pyrenees. It is possible that this may be due to the date of the Spanish paintings being a good deal later than that of those French cave-paintings which show reindeer, mammoth, and rhinoceros. And we have to bear in mind that in the North of Africa (Oran) engraved drawings on exposed rocks are known, which are for good reasons attributed to the Neolithic period; that is to say, they are later than the Reindeer epoch of the Palaeolithic period, whilst some are even much later.
In any case we have to remember that there are two very different and possible explanations of the presence or absence either of certain animals' bones or of representations of certain animals in one "decorated" cave and not in another. The one explanation is that animals have succeeded one another in time in Western Europe—changing as the climatic conditions have changed—and that when, in two cave-decorations or cave-deposits compared, the animals are different, the cause may be that the one deposit or cave-decoration is more recent than the other. The other explanation is that (as we well know) at one and the same moment very different animals occupy tracts of land which are only a hundred miles or so apart, but differ in climate and general conditions. At this moment there are wild bears and also wolves in France, but none in England; the elk occurs in Sweden and Russia, but not in the West of Europe; the porcupine in Italy and in Spain, but not in France. As late as the historic period the African elephant flourished on the African shore of the Mediterranean, but not in Spain; now it is not found north of the Sahara at all. So we have various possibilities to consider in comparing the animal pictures on the cave walls of Spain with those found in France, and may well suspend judgment till we have knowledge of a greatly extended area.
* * * * *
I am anxious to draw attention in this chapter to the painted group of ten human figures lately discovered on a rock shelter at Cogul, near Lerida, in Catalonia, and figured and described in the admirable French journal called "L'Anthropologie." These figures are those of young women dressed in short skirts and curious sleeves, the hair done up in a conical mass rising from the sides to the top of the head. Each figure is about ten inches high. The great interest about these drawings is that they are probably tens of thousands of years old, and present to us the women of the reindeer or late Pleistocene epoch. No other such painting of the women of this period is known, and the astonishing thing is that, though these are by no means fine specimens of prehistoric art, yet there is a definitely modern look about the figures and a freedom of touch about the drawing which makes one think at first that the picture is some modern, hasty but clever sketch in silhouette of a number of short skirted school girls at play. The waist is extremely small and elongated, the skirt, or petticoat, bell shaped, and the whole figure "sinuous." One of the figures appears to have a cloak or jacket, but the breasts and legs are bare.
Some three years ago Sir Arthur Evans discovered in the palace of the ancient Kings of Crete coloured frescoes some 3,500 years old representing in great detail elegant young women with greatly compressed waists, strongly-pronounced bustles, and elaborately ornamented skirts. These Cretan paintings of prehistoric young women, both in costume and pose, are like nothing so much as the portraits of distinguished ladies of the fashionable world of Paris exhibited by the painter, Boldini, in the "Salon." It is remarkable that explorers should have found contemporary paintings of young ladies who lived nearly as long before Cleopatra as she lived before us. And it is still more remarkable that those young ladies were "got up" in the same style, and apparently aimed at much the same effects of line and movement, as those which have become the latest fashion in Paris, and may be described as sinuous and serpentine. Not only is that the case, but it is evident that the painter of Knossos, the Minotaur city, and M. Boldini have experienced the same artistic impression, and have presented in their pictures the same significance of pose and the same form, from the tip of the nose to the ends of the fingers and the points of the toes—thus revealing a sympathy reaching across many ages. It seems to me that the same artistic impression is to be detected in the still earlier paintings of the wasp-waisted little ladies of the Cogul rock-shelter in Catalonia. We find here the same sinuous figure with exaggeratedly compressed waist, prominent bosom, and emphasised haunches. But it is many, perhaps forty, thousands years earlier! One is led to wonder whether this type of human female—to-day expressed with such masterly skill by Boldini—may not be at the back of the mind of a portion of the human race—that which populated what are now the shores of the Mediterranean, and probably came there travelling northwards from the centre of Africa. Possibly they brought with them that tendency to, and admiration for, megalopygy which is evidenced by the makers of the earliest known palaeolithic cave sculptures (the Aurignacians), and has persisted in some degree ever since in Europe—a tendency and a taste which are on the one hand totally absent in the East and Far East (Japan), and on the other hand have a strong development in the modern Bushmen (and the related Hottentots), an African race, and like the Spanish cave-men, rock painters.
I am able to reproduce here (Plates VIII and IX), through the kindness of Sir Arthur Evans and Dr. Hogarth, the keeper of the Ashmolean Museum at Oxford, two very interesting drawings—showing certain features in the dress of women in the prehistoric race which inhabited the island of Crete for some three thousand years previous to the date of these representations, which is about 1600 B.C. They are interesting to compare both with the much more ancient figures from the Spanish cave and with modern female costume. The first (Plate VIII) is a figure in coloured pottery (faience), representing either a votary or priestess of a goddess to whom snakes were sacred. The petticoat of this lady is very modern, being long, decorated with flounces (a series of five) and bell-shaped. The dress is further remarkable for a tight ring-like girdle which greatly compresses the waist and emphasises the broad hips. The little statue is about ten inches high, and was found by Sir Arthur Evans at Knossos, the ancient buried city the capital of Crete, in the Later Palace. Its date is that of the close of the Minoan period, namely 1600 B.C. The two figures in Plate IX are copied from frescoes representing acrobatic women from the bull-ring, also from the Later Palace at Knossos, and are a couple of centuries later in date. Religious ceremonies in connection with the worship of the bull (whence the fable of the minotaur) were practised in Knossos, and possibly there was a kind of baiting of bulls and jumping over and away from the infuriated animals such as may be seen at this day in the South of France and in Portugal. Possibly the employment of girls in this sport gave rise to the story of the maiden tribute from Athens to be sacrificed to the Cretan minotaur. The drawings are remarkable for the pose—that of the left-hand resembling an attitude assumed in boxing, whilst the dress—a kind of maillot or "tights"—is gripped round the waist by a firm ring (like a table-napkin ring), the compression of which is no doubt exaggerated. This fresco and many others of extraordinary interest, as well as much beautiful pottery and the whole of the plan of the city, its public buildings, granaries, library and sewers at several successive ages (the remains lying in layers one over the other), were discovered and described by Sir Arthur Evans, who is still at work on the wonderful history and art of these prehistoric Cretans, from whom the Mycenaeans of the mainland of Greece were an offshoot.
The point to which I chiefly desire to call attention is that this Cretan people practised compression of the waist, and so have a certain point of agreement with the prehistoric race of Lerida represented in Figs. 24 and 25 and with Boldini's modern ladies. We know from carvings and pottery that the men as well as the women of the Mycenaean people wore a tightly-compressing girdle. The form of figure thus produced—viz. relatively small, flexible waist, and large hips with protruding buttocks—seems to be a less pronounced variety of that of the small ivory figures of Aurignacian age (late Palaeolithic) found in cave deposits of France and of that of the Bushmen women. It seems as though the "ideal" female figure or that admired and pictured by these races and by the modern Latin races is the same in its main features, and differs altogether from that admired in the Far East. Such deeply seated tastes may possibly (indeed, not improbably) be due to a common origin of the Mediterranean and African peoples distinct from that of the Mongoloid Asiatic races.
FOOTNOTES:
[Footnote 9: A brief account of the skulls and implements of primitive man, with illustrations, is given in the first series of "Science from an Easy Chair," published in 1910 by Methuen & Co.]
CHAPTER XVII
NEW YEAR'S DAY AND THE CALENDAR
I came across a discussion the other day as to whether it is right to tell children and to let them believe that Santa Claus puts Christmas presents in their stockings, and that Peter Pan really comes in at the window and teaches nice little boys and girls to float through the air. I was surprised that anyone should be so singularly ignorant of child-nature as to hold that children really believe these things. Children have a wonderful and special faculty of "make-believe," which is not the same as "belief." All the time when a child is indulging in "make-believe" (a sort of willing self-illusion or waking dream) its real, though tender, reasoning-power is merely "suspended," and is not offended or outraged. That power can on emergency be brought to the front, and the little one will say, "Of course, they're not real," or "I always knew he didn't really come down the chimney." So that I do not think anyone need be anxious as to doing harm or laying the foundations of future distrust by telling fairy-tales to the very young. If told in the right form and spirit they are received by six-year-old and older children readily and naturally as belonging to that delicious world of "make-believe" which (as one of their own orators, I believe, has said) "children of even the meanest intelligence will not be guilty of confounding with that very inferior every-day world of reality in which we find, much to our regret, that it is necessary to spend so large a part of our time." The power of make-believe is almost limitless, and makes its appearance even in the speechless infant of less than two years old, who will gather fruit from a coloured picture, generously offer you a bite, and pretend to swallow the rest itself. Make-believe must have been a very big factor in the life of the ape-like predecessors of prehistoric man.
Deception in the world of reality is very different from make-believe, and a terrible thing. To the child—deception in regard to real things, whatever excuses adults may put forward in its defence, is well-nigh unforgivable. To be one who never says "it is" when it is not, nor "it will be" when it will not be—that is to be a friend on whom a child rests in perfect trust and happiness.
What have these thoughts to do with the New Year? Merely this, that it is not only with and for children that we make-believe at this season—we all of us, more or less, indulge in a make-believe about the New Year. As the clock strikes its twelve notes at midnight on December 31st, and all the bells of a great city are heard hovering in the air, sending forth their sweet sounds from far and near into the fateful night, there are few of us who have not a feeling that a great event has occurred. A physical change has set in—the Old Year is dead and gone, and the New Year, something tangible, which you can let in at the door or the window—has just come into being, and is there waiting for us. We are, of course, indulging in "make-believe," for there is no New Year, with any natural, noteworthy thing to mark its commencement, starting at midnight on December 31st. New Years begin every day and hour, and it is by no means agreed upon by all nations of the earth to pretend that the 1st of January is the critical day which we must regard as that portentous epoch, the beginning of the New Year. This choice of a day was made by the Romans, and that wonderful man Julius Caesar had a great deal to do with it; modern Europe adopted his arrangement of the year or calendar. But the Jews have their own calendar and their own New Year's Day, which varies from year to year, from our September 5th to our October 7th. It is, however, to them always the first day of the month Tishri, and the first day of their new year. The Mahomedans took the date of the flight of Mohammed from Mecca to Medina—the night of July 15th, 622 A.D.—as the commencement of their "era," and its anniversary is the first day of their month Muharram and the first day of their year—their New Year's Day. As, although they reckon twelve months to the year, their months are true lunar months, and are not corrected as are those in use by us (as I will explain below); their year consists of 354 days 8 hours, and so does not run parallel to our year at all. Their New Year's day, which began by being our July 16th, was in the next year coincident with our July 6th, then in three successive years it occurred on different days of June, and so on through May, April, and the preceding months, so that in thirty-two and a half of our years their New Year's Day has run through all our months and comes back again to July. |
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