The entire system seems to partake of the disease. The first indication of its approach is a feverish condition of the system, attended with a frequent and painful cough; the pulse is small, hard, and rapid. As the disease advances, the respiration becomes disturbed; the flanks heave; vesicular eruption is observed upon the teats, mouth, and feet; the horns are cold; the animal is sometimes lame; constipation and, sometimes, diarrhoea are accompanying symptoms; faeces black and fetid; the eyes weep and become much swollen; great tenderness along the spine; a brown or bloody discharge from the nose and mouth; the animal moans incessantly, grinds his teeth, rarely lies down, but to get up again quickly; finally, the breath becomes very offensive; tumors make their appearance in various parts of the body, which, in favorable cases, suppurate, and discharge a fetid matter.

Treatment.—Give one fourth of a pound of Epsom-salts, with one drachm of Jamaica ginger, twice a day, for two or three days. A bottle of porter, twice a day, will be found serviceable. Very little medicine is required internally in this disease, but much depends upon good nursing. External applications are chiefly to be depended upon. A solution of chloride of lime should be applied to the eruptions, or a solution of the chloride of zinc, twenty grains to an ounce of water; or, of sulphate of zinc, two drachms to a pint of water; or pulverized charcoal applied to the parts will be found useful.

NAVEL-ILL.

Inflammation of the navel in calves occasionally occurs, causing redness, pain, and sudden swelling in the part affected. This disease, if not promptly attended to, speedily carries off the creature.

Treatment.—Foment the part well with warm hop-tea; after which, the application of a cloth, well saturated with lead-water and secured by bandages, should be applied. Internally, doses of Epsom-salts, of two ounces each, dissolved in half a pint of water, should be given until the bowels are acted upon. After the inflammation has subsided, to counteract the weakness which may follow, give a bottle of porter two or three times a day.

OBSTRUCTIONS IN THE OESOPHAGUS.

Choking in cattle is of common occurrence, in consequence of turnips, potatoes, carrots, or other hard substances, becoming lodged in the oesophagus, or gullet.

These obstructions can sometimes be removed by careful manipulations with the hand; but, where this can not be accomplished, the flexible probang should be employed. This is a long India-rubber tube, with a whalebone stillet running through it, so as to stiffen it when in use. This instrument is passed down the animal's throat, and the offending substance is thus pushed down into the stomach.

OPEN JOINTS.

Opening of the joint generally results from accidents, from puncturing with sharp substances, from kicks, blows, etc. These injuries cause considerable nervous irritation in the system, and sometimes cause lock-jaw and death.

Treatment.—Close up the wound as speedily as possible. The firing-iron will sometimes answer the purpose very well. The author depends more upon the application of collodion—as recommended in his work upon "The Horse and His Diseases" for the same trouble—than upon any other remedy. It requires care in its application, in order to make it adhere firmly. Shoemakers'-wax, melted and applied, answers a very good purpose.

PARTURITION.

In natural labor—as has been suggested in a former part of this work—the aid of man is rarely required in bringing away the calf. But it not infrequently happens that, from malformation or wrong presentation, our assistance is required in order to deliver the animal.

The brute force, which has been far too often heretofore resorted to, should no longer be tolerated, since the lives of many valuable animals have been sacrificed by such treatment. Very often, by gentle manipulation with the greased hand, the womb can be so dilated as to afford a comparatively easy exit for the foetus.

If, however, the calf is presented wrong, it must be pushed back and placed in its proper position, if possible. In natural labor, the fore-legs, with the head lying between them, are presented; in which position—unless deformity, either in the pelvis of the cow, or in the foetus, exists—the calf is passed with little difficulty, and without assistance. It sometimes happens that the head of the foetus is turned backward. When this happens, the attendant should at once strip himself to the waist, bathe his arms, and hands with a little sweet-oil, or lard, and introduce them into the vagina, placing a cord around both fore-feet, and then, pushing them back, search for the head, which is to be brought forward to its proper position. The feet are next to be brought up with it. No force should be used, except when the cow herself makes the effort to expel the calf; otherwise, more harm than good may be done.

A case of this kind recently occurred in the author's practice, being the third within a year. The subject was a cow belonging to William Hance, Esq., of Bordentown, New Jersey. After she had been in labor for some twenty hours, he was called upon to see her. Upon inquiry, he found that several persons had been trying, without success, to relieve her. She was very much prostrated, and would, doubtless, have died within two or three hours, had no relief been afforded. The legs of the foetus protruded as far as the knees; the head was turned backward, and with the body, pressed firmly into the vagina, so that it was impossible to return it, or to bring the head forward. The operation of embryotomy was, therefore, at once performed, by cutting away the right shoulder, which enabled the operator, with the aid of his appropriate hooks, to bring the head forward, when the calf came away without further trouble,—the whole operation not requiring fifteen minutes. The uterus was then washed out, and the animal placed in as comfortable a position as possible, and a stimulating draught given, composed of two ounces of nitric ether, one ounce of tincture of opium, and a half pint of water. This was followed with a few doses of Fleming's tincture of aconite, ten drops in a little water, every few hours. In a few days the animal had entirely recovered.

Occasionally, the head comes first, or the head and one leg. In such cases, a cord should be slipped around the jaw and leg, and these then pushed back, so as to allow the other leg to be brought up. When this cannot be done, the foetus can, in most cases, be removed in the original position.

Breech, side, back, and other presentations sometimes occur; in all of which instances, the foetus must be turned in such a position that it can be brought away with as little trouble as possible. When this cannot be accomplished, the only resort is embryotomy, or cutting up of the foetus, which operation can only be safely performed by the qualified veterinary surgeon.

Since writing the above, another case has occurred in the author's practice. The cow—belonging to Samuel Barton, Esq., near Bordentown, New Jersey—had been in labor some eighteen hours; upon an examination of the animal, the calf was found to be very much deformed, presenting backwards,—one of the hind-legs having been pulled off by the person or persons assisting her previous to the author's arrival. Finding it impossible to deliver her in the usual way, embryotomy was in this instance employed. By this means, after taking out the intestines, lungs, etc., of the foetus, and cutting away its hind-quarters, the fore-parts were brought away. The head presented a singular appearance; the under jaw was so twisted as to bring the front teeth on the side of the face; the spinal column or back-bone, was turned twice around, resembling a spiral string; the front legs were over the back; the ribs were much contorted; the hind-parts were as much deformed; and, taken altogether, the deformity was the most singular which has been brought under the author's observation.

FREE MARTINS.—It has long been supposed by stockbreeders, that if a cow produce twins, one of which is a male and the other a female, the female is incapable of producing young, but that the male may be a useful animal for breeding purposes. Many instances have occurred when the twin sister of a bull has never shown the least desire for the male.

This indifference to sexual commerce arises, doubtless, from the animal's being but imperfectly developed in the organs of generation. This fact has been established by the investigations of Mr. John Hunter, who had three of these animals slaughtered for anatomical examination. The result is thus reported: "The external parts were rather smaller than is customary in the cow. The vagina passed on, as in the cow, to the opening of the urethra, and then it began to contract into a small canal, which passed on into the division of the uterus into the two horns; each horn passed along the edge of the broad ligament laterally toward the ovaria.

"At the termination of these horns were placed both the ovaries and the testicles. Both were nearly of the same size, which was about as large as a small nutmeg. To the ovaria, I could not find any Fallopian tube.

"To the testicles were vasa deferentia, but they were imperfect. The left one did not come near the testicle; the right one only came close to it, but did not terminate in the body called the epididymis. They were both pervious and opened into the vagina, near the opening of the urethra.

"On the posterior surface of the bladder, or between the uterus and the bladder, were the two bags, called vesiculae seminales in the male, but much smaller than they are in the bull. The ducts opened along with the vasa deferentia. This animal, then, had a mixture of all the parts, but all of them were imperfect."

Well-authenticated cases have, however, occurred where the female has bred, and the offspring proved to be good milkers. There are several instances on record of cows' giving birth to three, four, and even five calves at a time. There were on exhibition, in 1862, at Bordentown, New Jersey, three free martins, two sisters and a brother, which were beautiful animals. These were from a cow belonging to Mr. Joab Mershon, residing on Biles Island, situated in the Delaware River, a short distance above Bordentown. They were calved November 1st, 1858, and were therefore nearly four years of age. They had never shown the least desire for copulation. Their aggregate weight was 4300 pounds.

We extract the following from the London Veterinarian, for 1854:—"A cow, belonging to Mr. John Marshall, of Repton, on Wednesday last, gave birth to five, live healthy calves, all of which are, at the time I write, alive and vigorous, and have every appearance of continuing so. They are all nearly of a size, and are larger and stronger than could be supposed. Four of them are bull-calves.

"The dam is by no means a large one, is eleven years old, of a mongrel breed, and has never produced more than one offspring at any previous gestation. I saw her two days after she had calved, at which time she was ruminating, and did not manifest any unusual symptoms of exhaustion. I may mention that the first four calves presented naturally; the fifth was a breech-presentation."

CLEANSING.—The placenta, or after-birth, by which the foetus is nourished while in embryo, should be removed soon after calving. Generally, it will come away without any assistance. This is what is called "cleansing after calving." When, however, it remains for some time, its function having been performed, it becomes a foreign body, exciting uterine contractions, and therefore injurious. The sooner, then, it is removed, the better for the animal as well as the owner. To accomplish this, the hand should be introduced, and, by pulling gently in various directions, it will soon yield and come away. Should it be allowed to remain, it rapidly decomposes, producing a low, feverish condition of the system, which greatly interferes with the general health of the animal.

INVERSION OF THE UTERUS.—The uterus is sometimes turned inside out after calving. This is, generally, the result of debility, or severe labor. The uterus should be replaced as carefully as possible with the hands, care being taken that no dirt, straw, or other foreign substance adheres to it. Should it again be expelled, it would be advisable to quiet the system by the use of an anaesthetic, as chloroform, or—which is much safer—chloric ether. As soon as the animal is under the influence of this, the uterus may be again replaced. The hind-quarters should be raised as high as possible, in order to favor its retention. The animal should have a little gruel and a bottle of porter given to her every five or six hours, and the vulva should be bathed frequently with cold water.

PHRENITIS.

Inflammation of the brain is one of those dreadful diseases to which all animals are liable. It is known to the farmer as frenzy, mad staggers, etc.

The active symptoms are preceded by stupor; the animal stubbornly stands in one position; the eyes are full, red, and fiery; respiration rapid; delirium soon succeeds; the animal, bellowing, dashes wildly about, and seems bent on mischief, rushing madly at every object which comes in its way.

The causes of this disease are overwork in warm weather, a plethoric condition of the system, and too stimulating food. Prof. Gamgee, of the Edinburgh Veterinary College, relates a case resulting from the presence within the external meatus of a mass of concrete cerumen, or wax, which induced inflammation of the ear, extending to the brain.

Treatment.—As this is attended with considerable risk, unless it is taken prior to the frenzied stage, bleeding almost to fainting should be resorted to, and followed by a brisk purge. Take one ounce of Barbadoes aloes, and ten to fifteen drops of Croton-oil; mix the aloes with one pint of water and the oil, using the mixture as a drench. One pound of Epsom-salts will answer the purpose very well, in cases where the aloes and oil cannot be readily obtained. Application of bags of broken ice to the head, is very beneficial. Spirits of turpentine, or mustard, together with spirits of hartshorn and water should be well rubbed in along the spine, from the neck to the tail.

PLEURISY.

This is an inflammation of the pleura, or the serous membrane which lines the cavity of the chest, and which is deflected over the lungs. Inflammation of this membrane rarely occurs in a pure form, but is more generally associated with inflammation of the tissue of the lungs. If this disease is not attended to at an early period, its usual termination is in hydrothorax, or dropsy of the chest. The same causes which produce inflammation of the lungs, of the bronchia, and of the other respiratory organs, produce also pleurisy.

Symptoms.—The respiration is quick, short, and painful; pressure between the ribs produces much pain; a low, short, painful cough is present; the respiratory murmur is much diminished,—in fact, it is scarcely audible. This condition is rapidly followed by effusion, which may be detected from the dullness of the sounds, on applying the ear to the lower part of the lungs. The febrile symptoms disappear; the animal for a few days appears to improve, but soon becomes weak, languid, and often exhausted from the slightest exertion.

Treatment.—The same treatment in the early stage is enjoined as in inflammatory pneumonia, which the reader will consult—counter-irritation and purgatives. Bleeding never should be resorted to. When effusion takes place, it is necessary to puncture the sides with a trochar, and draw away the fluid, giving internally one of the following purges three times a day: rosin, eight ounces; saltpetre, two ounces, mix, and divide into eight powders. Half-drachm doses of the iodide of potash, dissolved in water, to be given three times daily, will be found useful in this disease.

PLEURO-PNEUMONIA.

This disease, as its name implies, is an inflammatory condition of the lungs and the pleura, or the enveloping membrane of the lungs and the lining membrane of the chest. It is sometimes called contagious, infectious, and epizooetic pleuro-pneumonia,—contagious or infectious, from its supposed property of transmission from the diseased to the healthy animal.



A contagious character the author is not ready to assign to it,—contagious, as he understands it, being strictly applicable to those diseases which depend upon actual contact with the poison that it may be communicated from one animal to another. This does not necessarily imply the actual touching of the animals themselves; for it may be communicated from the poison left in the trough, or other places where the diseased animal has been brought in contact with some object, as is often the case in glanders in the horse; the matter discharged from the nose, and left upon the manger, readily communicating that disease to healthy animals coming in contact with it. Contagious diseases, therefore, travel very slowly, starting, as they do, at one point, and gradually spreading over a large district, or section of country.

This disease is, however, regarded by the author as infectious; by which term is meant that it is capable of being communicated from the diseased to the healthy animal through the medium of the air, which has become contaminated by the exhalations of poisonous matter. The ability to inoculate other animals in this way is necessarily confined to a limited space, sometimes not extending more than a few yards. Infectious diseases, accordingly, spread with more rapidity than contagious ones, and are, consequently, more to be dreaded; since we can avoid the one with comparatively little trouble, while the other often steals upon us when we regard ourselves as beyond its influence, carrying death and destruction in its course.

The term by which this disease is known, is a misnomer. Pleuro-pneumonia proper is neither a contagious, nor an infectious disease; hence, the denial of medical men that this so-called pleuro-pneumonia is a contagious, or infectious disease, has been the means of unnecessarily exposing many animals to its poisonous influence.

In the Recueil de Medecine Veterinaire, for 1833, will be found a very interesting description of this fatal malady. The author, M. Lecoy, Assistant Professor at the Veterinary School of Lyons, France, says: "There are few districts in the arrondissement of Avesnes where more cattle are fattened than in that of Soire-le-Chateau. The farmers being unable to obtain a sufficient supply of cattle in the district, are obliged to purchase the greater part of them from other provinces; and they procure a great number for grazing from Franche Comte. The cattle of this country are very handsome; their forms are compact; they fatten rapidly; and they are a kind of cattle from which the grazer would derive most advantage, were it not that certain diseases absorb, by the loss of some of the animals, the profits of the rest of the herd. Amongst the diseases which most frequently attack the cattle which are brought from the North, there is one very prevalent in some years, and which is the more to be dreaded as it is generally incurable; and the slaughter of the animal, before he is perceptibly wasted, is the only means by which the farmer can avoid losing the whole value of the beast.

"This disease is chronic pleuro-pneumonia. The symptoms are scarcely recognizable at first, and often the beast is ill for a long time without its being perceived. He fattens well, and when he is slaughtered the owner is astonished to find scarcely half of the lungs capable of discharging the function of respiration. When, however, the ox has not sufficient strength of constitution to resist the ravages of disease, the first symptom which is observed is diminution, or irregularity of appetite. Soon afterwards, a frequent, dry cough is heard, which becomes feeble and painful as the disease proceeds. The dorso-lumbar portion of the spine (loins) grows tender; the animal flinches when the part is pressed upon, and utters a peculiar groan, or grunt, which the graziers regard as decisive of the malady.

"Quickly after this, the movements of the flanks become irregular and accelerated, and the act of respiration is accompanied by a kind of balancing motion of the whole body. The sides of the chest become as tender as the loins, or more so; for the animal immediately throws himself down, if pressed upon with any force. The elbows become, in many subjects, more and more separated from the sides of the chest. The pulse is smaller than natural, and not considerably increased. The muzzle is hot and dry, alternately. The animal lies down as in a healthy state, but rumination is partially or entirely suspended. The faeces are harder than they should be; the urine is of its natural color and quantity; the mouth is often dry; and the horns and ears retain their natural temperature.

"This first stage of the disease sometimes continues during a month, or more, and then, if the animal is to recover, or at least, apparently so, the symptoms gradually disappear. First of all, the appetite returns, and the beast begins to acquire a little flesh. The proprietor should then make haste and get rid of him; for it is very rare that the malady, however it may be palliated for a while, does not reappear with greater intensity than before.

"In most cases, the disease continues to pursue its course toward its termination without any remission,—every symptom gradually increasing in intensity. The respiration becomes more painful; the head is more extended; the eyes are brilliant; every expiration is accompanied with a grunt, and by a kind of puckering of the angles of the lips; the cough becomes smaller, more suppressed, and more painful; the tongue protrudes from the mouth, and a frothy mucus is abundantly discharged; the breath becomes offensive; a purulent fluid of a bloody color escapes from the nostrils; diarrhoea, profuse and fetid, succeeds to the constipation; the animal becomes rapidly weaker; he is a complete skeleton, and at length he dies.

"Examination after death discloses slight traces of inflammation in the intestines, discoloration of the liver, and a hard, dry substance contained in the manyplus. The lungs adhere to the sides and to the diaphragm by numerous bands, evidently old and very firm. The substance of the lungs often presents a reddish-gray hepatization throughout almost its whole extent. At other times, there are tubercles in almost every state of hardness, and in that of suppuration. The portion of the lungs that is not hepatized is red, and gorged with blood. Besides the old adhesions, there are numerous ones of recent date. The pleura is not much reddened, but by its thickness in some points, its adhesion in others, and the effusion of a serous fluid, it proves how much and how long it has participated in the inflammatory action. The trachea and the bronchia are slightly red, and the right side of the head is gorged with blood.

"In a subject in which, during life, I could scarcely feel the beating of the heart, I found the whole of the left lobe of the lungs adhering to the sides, and completely hepatized. In another, that had presented no sign of disease of the chest, and that for some days before his death vomited the little fodder which he could take, the whole of that portion of the oesophagus that passed through the chest was surrounded with dense false membranes, of a yellowish hue, ranging from light to dark, and being in some parts more than an inch in thickness, and adhering closely to the muscular membrane of the tube, without allowing any trace to be perceived of that portion of the mediastinal pleura on which this unnatural covering was fixed and developed.

"The cattle purchased in Franche Comte are brought to Avesnes at two periods of the year—in autumn and in the spring. Those which are brought in autumn are much more subject to the disease than those which have arrived in the spring; and it almost always happens that the years in which it shows itself most generally are those in which the weather was most unfavorable while the cattle were on the road. The journey is performed by two different routes,—through Lorraine and through Champagne,—and the disease frequently appears in cattle that have arrived by one of these routes. The manner in which the beasts are treated, on their arrival, may contribute not a little to the development of the malady. These animals, which have been driven long distances in bad weather, and frequently half starved, arrived famished, and therefore the more fatigued, and some of them lame. Calculating on their ravenous appetite, the graziers, instead of giving them wholesome food, make them consume the worst that the farm contains,—musty and mouldy fodder; and it is usually by the cough, which the eating of such food necessarily produces, that the disease is discovered and first developed.

"Is chronic pleuro-pneumonia contagious? The farmers believe that it is, and I am partly of their opinion. When an animal falls sick in the pasture, the others, after his removal, go and smell at the grass where he has lain, and which he has covered with his saliva, and, after that, new cases succeed to the first. It is true that this fact is not conclusive, since the disease also appears in a great number of animals that have been widely separated from each other. But I have myself seen three cases in which the cattle of the country, perfectly well before, have fallen ill, and died with the same symptoms, excepting that they have been more acute, after they have been kept with cattle affected with this disease. This circumstance inclines me to think that the disease is contagious; or, at least, that, in the progress of it, the breath infects the cow-house in which there are other animals already predisposed to the same disease. I am induced to believe that most of the serious internal diseases are communicated in this manner, and particularly those which affect the organs of respiration, when the animals are shut up in close, low, and badly-ventilated cow-houses." [Rec. de Med. Vet. Mai, 1833.]

No malady can be more terrible and ruinous than this among dairy-stock; and its spread all over the country, together with its continuance with scarcely any abatement, must be attributed to the combination of various causes. The chief are: first, the very contagious or infectious nature of the disorder; second, inattention on the part of Government to the importation and subsequent sale of diseased animals; and, third, the recklessness of purchasers of dairy or feeding cattle.

This disease may be defined as an acute inflammation of the organs of the chest, with the development of a peculiar and characteristic poison, which is the active element of infection or contagion. It is a disease peculiar to the cattle tribe, notwithstanding occasional assertions regarding observations of the disease among horses, sheep, and other animals,—which pretended observations have not been well attested.

The infectious, or contagious nature of this virulent malady is incontestibly substantiated by an overwhelming amount of evidence, which cannot be adduced at full length here, but which may be classified under the following heads: first, the constant spreading of the disease from countries in which it rages to others which, previously to the importation of diseased animals, had been perfectly free from it. This may be proved in the case of England, into which country it was carried in 1842, by affected animals from Holland. Twelve months after, it spread from England to Scotland, by means of some cattle sold at All-Hallow Fair, and it was only twelve months afterward that cattle imported as far north as Inverness took the disease there. Lately, a cow taken from England to Australia was observed to be diseased upon landing, and the evil results were limited to her owner's stock, who gave the alarm, and ensured an effectual remedy against a wider spread. Besides, the recent importation of pleuro-pneumonia into the United States from Holland appears to have awakened our agricultural press generally, and to have convinced them of the stubborn fact that our cattle have been decimated by a fearfully infectious, through probably preventable, plague. A letter from this country to an English author says: "Its (pleuro-pneumonia's) contagious character seems to be settled beyond a doubt, though some of the V.S. practitioners deny it, which is almost as reasonable as it would be to deny any other well-authenticated historic fact. Every case of the disease is traceable to one of two sources; either to Mr. Chenery's stock in Belmont (near Boston, Massachusetts), into which the disease was introduced by his importation of four Dutch cows from Holland, which arrived here the 23d of last May; or else to one of the three calves which he sold to a farmer in North Brookfield, Massachusetts, last June."

2dly. Apart from the importation into countries, we have this certain proof—to which special attention was drawn several years ago—that cattle-dealers' farms, and public markets, constitute the busy centres of infection. Most anxious and careful inquiries have established the proposition that in breeding-districts, where the proprietors of extensive dairies—as in Dumfries, Scotland, and other places—abstain from buying, except from their neighbors, who have never had diseases of the lungs amongst their stock, pleuro-pneumonia has not been seen. There is a wide district in the Vicinity of Abington, England, and in the parish of Crawford, which has not been visited by this plague, with the exception of two farms, into which market-cattle had been imported and thus brought the disease.

3dly. In 1854 appeared a Report of the Researches on Pleuro-Pneumonia, by a scientific commission, instituted by the Minister of Agriculture in France. This very able pamphlet was edited by Prof. Bouley, of Alfort, France. The members of the commission belonged to the most eminent veterinarians and agriculturists in France. Magendie was President; Regnal, Secretary; besides Rayer, the renowned comparative pathologist; Yvart, the Inspector-General of the Imperial Veterinary Schools; Renault, Inspector of the Imperial Veterinary Schools; Delafond, Director of Alfort College; Bouley, Lassaigne, Baudemont, Doyere, Manny de Morny, and a few others representing the public. If such a commission were occasionally appointed in this country for similar purposes, how much light would be thrown on subjects of paramount importance to the agricultural community!

Conclusions arrived at by the commission are too important to be overlooked in this connection. The reader must peruse the Report itself, if he needs to satisfy himself as to the care taken in conducting the investigations: but the foregoing names sufficiently attest the indisputable nature of the facts alluded to.

In instituting its experiments, the commission had in view the solving of the following questions:—

1stly. Is the epizooetic pleuro-pneumonia of cattle susceptible of being transmitted from diseased to healthy animals by cohabitation?

2dly. In the event of such contagion's existing, would all the animals become affected, or what proportion would resist the disease?

3dly. Amongst the animals attacked by the disease, how many recover, and under what circumstances? How many succumb?

4thly. Are there any animals of the ox species decidedly free from any susceptibility of being affected from the contagion of pleuro-pneumonia?

5thly. Do the animals, which have been once affected by a mild form of the disease, enjoy immunity from subsequent attacks?

6thly. Do the animals, which have once been affected by the disease in its active form, enjoy such immunity?

To determine these questions, the commission submitted at different times to the influence of cohabitation with diseased animals forty-six perfectly healthy ones, chosen from districts in which they had never been exposed to a similar influence.

Of these forty-six animals, twenty were experimented on at Pomeraye, two at Charentonneau, thirteen at Alfort, and eleven, in the fourth experiment, at Charentonneau.

Of this number, twenty-one animals resisted the disease when first submitted to the influence of cohabitation, ten suffered slightly, and fifteen took the disease. Of the fifteen affected, four died, and eleven recovered. Consequently, the animals which apparently escaped the disease at the first trial amounted to 45.65 per cent., and those affected to 21.73 per cent. Of these, 23.91 per cent. recovered, and 8.69 per cent. died. But the external appearances in some instances proved deceptive, and six of the eleven animals of the last experiment, which were regarded as having escaped free, were found, on being destroyed, to bear distinct evidence of having been affected. This, therefore, modifies the foregoing calculations, and the numbers should stand thus:—

15 enjoy immunity, or 32.61 per cent. 10 indisposed, " 21.73 " 17 animals cured, " 36.95 " 4 dead, " 8.98 "

Of the forty-two animals which were exposed in the first experiments at Pomeraye and Charentonneau, and which escaped either without becoming affected, or recovering, eighteen were submitted to a second trial; and of these eighteen animals, five had, in the first experiment, suffered from the disease and had recovered; five had now become affected; and four had been indisposed. The four animals submitted to the influence of contagion a third time, had been affected on the occasion of the first trial. None of the eighteen animals contracted the disease during these renewed exposures to the influence of contagion.

From the results of these experiments, the commission drew the following conclusions:—

1stly. The epizooetic pleuro-pneumonia is susceptible of being transmitted from diseased to healthy animals by cohabitation.

2dly. All the animals exposed do not take the disease; some suffer slightly, and others not at all.

3dly. Of the affected animals, some recover and others die.

4thly. The animals, whether slightly or severely affected, possess an immunity against subsequent attacks.

These are the general conclusions which the commission deemed themselves authorized to draw from their experiments. The absolute proportion of animals which become affected, or which escape the disease, or of those which die and which recover, as a general rule, cannot be deduced from the foregoing experiments, which, for such a purpose, are too limited. The commission simply state the numbers resulting from their experiments. From these it transpires that forty five of the animals became severely affected with pleuro-pneumonia, and twenty-one per cent. took the disease slightly, making the whole sixty-six per cent. which were more or less severely attacked. Thirty-four per cent. remained free from any malady. The proportion of animals which re-acquired their wonted appearance of health amounted to eighty-three per cent., whereas seventeen per cent. died. Many minor points might be insisted on, but it is sufficient here to say, that the most careful analysis of all facts has proved to practical veterinarians, as well as to experienced agriculturists, and must prove to all who will calmly and dispassionately consider the point, that pleuro-pneumonia is pre-eminently an infectious, or contagious disease.



Symptoms.—From the time that an animal is exposed to the contagion to the first manifestation of symptoms, a certain period elapses. This is the period of incubation. It varies from a fortnight to forty days, or even several months. The first signs, proving that the animal has been seized, can scarcely be detected by any but a professional man; though, if a proprietor of cattle were extremely careful, and had pains-taking individuals about his stock, he would invariably notice a slight shiver as ushering in the disorder, which for several days, even after the shivering fit, would limit itself to slight interference in breathing, readily detected on auscultation. Perhaps a cough might be noticed, and that the appetite and milk-secretion diminished. The animal becomes costive, and the shivering fits recur. The cough becomes more constant and oppressive; the pulse full and frequent, usually numbering about eighty per minute at first, and rising to upwards of one hundred. The temperature of the body rises, and all the symptoms of acute fever set in. A moan, or grunt, in the early part of the disease indicates a dangerous attack, and the alae nasi (cartilages of the nose) rise spasmodically at each inspiration; the air rushes through the inflamed windpipe and bronchial tubes, so as to produce a loud, coarse respiratory murmur; and the spasmodic action of the abdominal muscles indicates the difficulty the animal also experiences in the act of expiration. Pressure over the intercostal (between the ribs) spaces, and pressing on the spine, induce the pain so characteristic of pleurisy, and a deep moan not infrequently follows such an experiment. The eyes are bloodshot, mouth clammy, skin dry and tightly bound to the subcutaneous textures, and the urine is scanty and high-colored.

Upon auscultation, the characteristic dry, sonorous rale of ordinary bronchitis may be detected along the windpipe, and in the bronchial tubes. A loud sound of this description is, not infrequently, detected at the anterior part of either side of the chest; whilst the respiratory murmur is entirely lost, posteriorly, from consolidation of the lungs. A decided leathery, frictional sound is detected over a considerable portion of the thoracic surface. As the disease advances, and gangrene, with the production of cavities in the lungs, ensues, loud, cavernous rales are heard, which are more or less circumscribed, occasionally attended by a decided metallic noise. When one lobe of the lungs is alone affected, the morbid sounds are confined to one side, and on the healthy side the respiratory murmur is uniformly louder all over.

By carefully auscultating diseased cows from day to day, interesting changes can be discovered during the animal's lifetime. Frequently, the abnormal sounds indicate progressive destruction; but, at other times, portions of the lungs that have been totally impervious to air, become the seat of sibilant rales, and gradually, a healthy respiratory murmur proves that, by absorption of the materials which have been plugging the tissues of the lungs, resolution is fast advancing. Some very remarkable cases of this description have been encountered in practice.

Unfortunately, we often find a rapid destruction of the tissues of the lungs, and speedy dissolution. In other instances, the general symptoms of hectic, or consumption, attend lingering cases, in which the temperature of the body becomes low, and the animal has a dainty appetite, or refuses all nourishment. It has a discharge from the eyes, and a fetid, sanious discharge from the nose. Not infrequently, it coughs up disorganized lung-tissue and putrid pus. Great prostration, and, indeed, typhus symptoms, set in. There is a fetid diarrhoea, and the animal sinks in the most emaciated state, often dying from suffocation, in consequence of the complete destruction of the respiratory structures.

Post mortem appearances.—In acute cases, the cadaverous lesions chiefly consist in abundant false membranes in the trachea, or windpipe, and closure of the bronchial tubes by plastic lymph. The air-vesicles are completely plugged by this material, and very interesting specimens may be obtained by careful dissection, in the shape of casts of the bronchial tubes and air-vesicles, clustered together like bunches of grapes. On slicing the lungs in these cases, hepatization is observed, presenting a very peculiar appearance, which is, in a great measure, due to the arrangement of the lung-tissue in cattle. The pulmonary lobules are of a deep-red or brown color, perfectly consolidated, and intersected or separated, one from the other, by lighter streaks of yellowish-red lymph, occupying the interlobular, areolar tissue. In the more chronic cases, the diseased lobes and lobules are found partly separated from the more healthy structures.

This occurs from gangrene, and putrefactive changes, or in some instances, from the ulcerative process, so constantly observed in the segregation of dead from living tissues. Abscesses are not infrequently found in different parts of the lungs. Sometimes circumscribed, at others connected with bronchial tubes, and not infrequently communicating with the pleural cavity. True empyema is not often seen; but, at all times, the adhesions between the costal and visceral pleura are extensive, and there is much effusion in the chest. In dressed carcasses of cows that have been slaughtered from pleuro-pneumonia, even though the disease has not been far advanced, it will be found that the butcher has carefully scraped the serous membrane off the inner surface of the ribs, as it would otherwise be impossible for him to give the pleura its healthy, smooth aspect, from the firm manner in which the abundant false membranes adhere to it. The diseased lungs sometimes attain inordinate weight. They have been known to weigh as much as sixty pounds.

Treatment.—The veterinary profession is regarded by many who have sustained heavy losses from pleuro-pneumonia, as deeply ignorant, because its members cannot often cure the disease. Persons forget that there are several epidemics which prove equally difficult to manage on the part of the physician, such as cholera, yellow fever, etc. The poison in these contagious, epizooetic diseases is so virulent that the animals may be regarded as dead from the moment they are attacked. Its elimination from the system is impossible, and medicine cannot support an animal through its tardy, exhausting, and destructive process of clearing the system of so potent a virus. All antiphlogistic means have failed, such as blood-letting and the free use of evacuants. Derivatives, in the form of mustard-poultices, or more active blisters, are attended with good results. Stimulants have proved of the greatest service; and the late Prof. Tessona, of Turin, strongly recommended, from the very onset of the disease, the administration of strong doses of quinine. Maffei, of Ferrara, states that he has obtained great benefit from the employment of ferruginous tonics and manganese in the very acute stage of the malady, supported by alcoholic stimulants. Recently, the advantages resulting from the use of sulphate of iron, both as a preventive and curative, have been exhibited in France. It would appear that the most valuable depurative method of treatment yet resorted to is by the careful use of the Roman bath. Acting, like all other sudorifics in cases of fever and blood diseases, it carries off by the skin much of the poison, without unduly lowering the vital powers.

Prevention.—The rules laid down in Denmark, and indeed in many other places, appear the most natural for the prevention of the disease. If they could be carried out, the disease must necessarily be stopped; but there are practical and insuperable difficulties in the way of enforcing them. Thus, a Dr. Warneke says, prevention consists in "the avoidance of contagion; the slaughter of infected beasts; the prohibition of keeping cattle by those whose cattle have been slaughtered, for a space of ten weeks after the last case occurring; the disinfection of stalls vacated by slaughtering; the closing of infected places to all passing of cattle; especial attention to the removal of the dung, and of the remains of the carcasses of slaughtered beasts; and, finally, undeviating severity of the law against violators."

Dr. Williams, of Hasselt, suggested and carried out, in 1851, the inoculation of the virus of pleuro-pneumonia, in order to induce a mild form of the disease in healthy animals, and prevent their decimation by the severe attacks due to contagion. He met with much encouragement, and perhaps more opposition. Didot, Corvini, Ercolani, and many more accepted Dr. Williams's facts as incontestable, and wrote, advocating his method of checking the spread of so destructive a plague.

The first able memoir which contested all that has been said in favor of inoculation, appeared in Turin, and was written by Dr. Riviglio, a Piedmontese veterinary surgeon. This was supported by the views of many others. Prof. Simonds wrote against the plan, and, in 1854, the French commission, whose report has been before mentioned, confirmed, in part, Riviglio's views, though, from the incompleteness of the experiments, further trials were recommended.

Inoculation is performed as follows: A portion of diseased lung is chosen, and a bistoury or needle made to pierce it so as to become charged with the material consolidating the lung, and this is afterward plunged into any part, but, more particularly, toward the point of the tail. If operated severely, and higher up, great exudation occurs, which spreads upward, invades the areolar tissue round the rectum and other pelvic organs, and death soon puts an end to the animal's excruciating suffering. If the operation is properly performed with lymph that is not putrid, and the incisions are not made too deep, the results are limited to local exudation and swelling, general symptoms of fever, and gradual recovery. The most common occurrence is sloughing of the tail; and in London, at the present time, dairies are to be seen in which all the cows have short-tail stumps.

Dr. Williams and others have gone too far in attempting to describe a particular corpuscle as existing in the lymph of pleuro-pneumonia. All animal poisons can be alone discovered from their effects. In structure and chemical constitution, there is no difference, and often the most potent poisons are simple fluids. The Belgian Commission, appointed to investigate the nature and influence of inoculation for pleuro-pneumonia, very justly expressed an opinion that Dr. Williams had not proved that a specific product, distinguished by anatomical characters, and appreciable by the microscope, existed in this disease.

The all-important question, "Is inoculation of service?" has to the satisfaction of most been solved. The Belgian and French commissions, the observations of Riviglio, Simond, Herring, and many others, prove that a certain degree of preservative influence is derived by the process of inoculation. It does not, however, arrest the progress of the disease. It certainly diminishes to some extent—though often very slightly so—the number of cases, and, particularly, of severe ones. This effect has been ascribed to a derivative action, independent of any specific influence, and, indeed, similar to that of introducing setons in the dewlap.

In London, some dairymen have considerable faith in inoculation, though its effect is uncertain, and the manner of its working a mystery. The best counsel, in the premises, which can be given to the keeper of dairy stock is, to select his own animals from healthy herds, and strictly to avoid public markets. In many instances, a faithful observance of these injunctions has been sufficient to prevent the invasion of this terrible disease. [Gamgee.]

The existence of this disease in the United States was not generally known until the year 1859, when Mr. Chenery, of Belmont, near Boston, Massachusetts, imported several cows from Holland, which arrived in the early part of the spring of that year. Some of the animals were sick when they arrived, but the true nature of the disease was not at that time suspected. Several of them were so bad that they were carried in trucks to Mr. Chenery's barn. Some two months passed away before the character of the disease was discovered.

Upon the facts becoming known, the citizens of Massachusetts became panic-stricken, as the disease was rapidly spreading over that State. An extra session of the Legislature was speedily convened, when a Joint Special Committee was appointed, to adopt and carry out such measures as in their judgment seemed necessary for the extirpation of this monster, pleuro-pneumonia.

The Committee met in the Hall of the House of Representatives, Thursday, May, 31, 1860, to receive evidence as to the contagious or infectious character of the disease, in order to determine concerning the necessity of legislative action.

Mr. Walker, one of the commissioners appointed by the Governor, made the following statement: "The disease was introduced into North Brookfield from Belmont. Mr. Curtis Stoddard, a young man of North Brookfield, went down, the very last of June, last year, and purchased three calves of Mr. Chenery, of Belmont. He brought these calves up in the cars to Brookfield. On their way from the depot to his house, about five miles, one of the calves was observed to falter, and when he got to his house, it seemed to be sick, and in two or three days exhibited very great illness; so much so, that his father came along, and, thinking he could take better care of it, took the calf home. He took it to his own barn, in which there were about forty head of cattle; but it grew no better, and his son went up and brought it back again to his own house. In about ten days after that, it died. His father, who had had the calf nearly four days, in about a fortnight afterward observed that one of his oxen was sick, and it grew worse very fast and died. Two weeks after, a second also sickened, and died. Then a third was attacked and died, the interval growing wider from the attack of one animal to that of another, until he had lost eight oxen and cows. Young Stoddard lost no animal by the infection,—that is, no one died on his hands. Prior to the appointment of this Commission, about the first of November,—for reasons independent of this disease, which I don't suppose he then knew the nature of,—he sold off his stock. He sold off eleven heifers, or young animals, and retained nine of the most valuable himself; which shows that he did not then know any thing was the matter with them.

"These nine were four oxen, and five young cattle. The four he took to his father's, three of the others to his uncle's, and the remaining two to his father-in-law's; distributing them all among his friends,—which furnishes another proof that he did not suppose he was doing any mischief. He disposed of his herd in that way. From this auction, these eleven animals went in different directions, and wherever they went, they scattered the infection. Without a single failure the disease has followed those cattle; in one case, more than two hundred cattle having been infected by one which was sold at Curtis Stoddard's auction, when he was entirely ignorant of the disease.

"When the commission was appointed, they went and examined his cattle, and were satisfied that they were diseased,—at least, some of them. They examined his father's herd, and found that they were very much diseased; and when we came to kill Curtis Stoddard's cattle, seven of the nine head were diseased. Two were not condemned, because the law says, 'Cattle not appearing to be diseased, shall be appraised.' Nevertheless, it proved that these animals were diseased; so that his whole herd was affected.

"In regard to Leonard Stoddard's cattle, he lost fourteen of his animals before the commissioners went to his place. They took eighteen more, all of which were diseased,—most of them very bad cases,—indeed, extreme cases. That left eight heads, which were not condemned, because not appearing to be diseased. Here I remark, that when this disease is under the shoulder-blade, it cannot be detected by percussion. The physicians did not say that the animal was not diseased, but that they did not see sufficient evidence upon which to condemn. Such animals were to be paid for, upon the ground of their not appearing to be diseased. Nevertheless, it is proper to state that the remaining eight which were not condemned, were suspected to be diseased, and we told Mr. Stoddard that we had the impression that they were diseased, notwithstanding appearances. He said, 'There is a three-year-old animal that has never faltered at all. She has never manifested the slightest disease. If you will kill her, and she is diseased, I shall make up my mind that I have not a well animal in my stalls.' We killed the animal, and found her to be badly diseased.

"Thus, the first two herds were all infected by the disease; and in the last of Curtis Stoddard's oxen which we killed, we found a cyst in the lungs of each. One of these lungs is now in this building, never having been cut open, and medical men can see the cyst which it contains. I have said in what manner Mr. Curtis Stoddard's cattle spread the infection.

"In regard to Mr. Leonard Stoddard's: in the first place, he kept six or eight oxen which he employed in teaming. He was drawing some lumber, and stopped over night, with his oxen, at Mr. Needham's. Needham lost his whole herd. He lost eight or ten of them, and the rest were in a terrible condition. Seven or eight more were condemned, and his whole herd was destroyed, in consequence of Mr. Stoddard's stopping with him over night. Mr. Stoddard sold an animal to Mr. Woodis of New Braintree. He had twenty-three fine cows. It ruined his herd utterly. Seven or eight animals died before the commissioners got there. Mr. L. Stoddard also sold a yoke of cattle to Mr. Olmstead, one of his neighbors, who had a very good herd. They stayed only five days in his hands, when they passed over to Mr. Doane. In these five days they had so infected his herd that it was one of the most severe instances of disease that we have had. One third were condemned, and another third were passed over as sound, whether they were so, or not. They did not appear to be diseased. The cattle that were passed from Mr. Stoddard through Mr. Olmstead to Mr. Doane, were loaned by Mr. D. to go to a moving of a building from Oakham to New Braintree. They were put in with twenty-two yoke of cattle, and employed a day and a half. It has since been proved that the whole of these cattle took the contagion. They belonged to eleven different herds, and of course, each of these herds formed a focus from which the disease spread. Now, in these two ways the disease has spread in different directions.

"But, when the commissioners first commenced, they had no idea that the disease extended further than those herds in which there were animals sick. Hence, their ideas and the ideas of those who petitioned for the law, did not extend at all to so large a number of herds as have since been proved to be diseased, because they only judged of those who manifested disease. As soon as we began in that circle, we found a second circle of infection, and another outside of that; and by that time it had branched off in various directions to various towns. It assumed such proportions that it was very evident that the commissioners had not the funds to perform the operations required by the law. The law confines the commissioners to one operation,—killing and burying. No discretionary power is given at all. The commissioners became entirely dissatisfied with that condition of things, because other measures besides merely killing and burying, are quite as necessary and important. When they arrived at that point and discovered to what extent the infection had spread, they stopped killing the herds, and I believe there has not been a herd killed for twenty days.

"The policy was then changed to circumscribing the disease, by isolating the herds just as fast as possible and as surely as possible. A man's herd has been exposed. There is no other way than to go and examine it, and take the diseased animals away. Then he knows the animals are diseased, and his neighbors know it. That has been the business of the commissioners for the last twenty days; and the facts that they have no discretionary power whatever, and that they were entirely circumscribed in their means, and that it was hard for the farmers to lose their stock and not be paid for it,—induced them to petition the Governor, in connection with the Board of Agriculture, for the calling of a session of the Legislature, to take measures for the extinction of the disease."

In response to a question, "Whether any animals that had once been affected, had afterward recovered?"—the same gentleman stated that instances had occurred where cattle had been sick twice, and had, apparently, fully recovered; they ruminated readily, and were gaining flesh. Upon examination, however, they were pronounced diseased, and, when killed, both lungs were found in a hopeless case, very badly diseased.

Dr. George B. Loring, another of the commissioners, stated that eight hundred and forty-two head of cattle had, at that time, been killed, and that, from a careful estimate, there still remained one thousand head, which should either be killed, or isolated for such a length of time as should establish the fact that they had no disease about them. Twenty thousand dollars and upwards had already been appraised as the value of the cattle then killed.

As to disinfecting measures, the farmers who had lost cattle were requested to whitewash their barns thoroughly, and some tons of a disinfecting powder were purchased for the advantage of the persons who wished to use it. An early application was advised, that the barns might be in readiness for hay the then coming season.

The practice adopted by the commissioners was, to appraise the cattle whenever a herd was found which had been exposed, and a surgeon was appointed to pass judgment upon the number of diseased animals. After that judgment, the remaining animals that were pronounced sound were killed and passed to the credit of the owner, after an appraisement made by these persons. The fair market-prices were paid, averaging about thirty-three dollars a head. At the time of the meeting of the committee, some seventy cattle had died of the disease.

An examination was made of some of the animals killed, and the following facts obtained:—

Case 1.—This cow had been sick for nineteen days; was feeble, without much appetite, with diarrhoea, cough, shortness of breathing, hair staring, etc. Percussion dull over the whole of the left side of the chest; respiration weak. Killed by authority. Several gallons of serum were found in the left side of the chest; a thick, furzy deposit of lymph over all the pleura-costalis. This lymph was an inch in thickness, resembling the velvety part of tripe, and quite firm. There was a firm deposit of lymph in the whole left lung, but more especially at its base, with strong adhesions to the diaphragm and pleura-costalis near the spine. The lung was hard and brittle, like liver, near its base. No pus. Right lung and right side of chest healthy.

Case 2.—This cow was taken very sick, January 30th. In fourteen days, she began to get better. April 12th, she is gaining flesh, breathes well, hair healthy, gives ten quarts of milk a day, and in all other respects bids fair for a healthy animal hereafter, except a slight cough. Percussion dull over base of the left lung, near the spine, and respiration feeble in the same regions.

Autopsy.—Left lung strongly adherent to diaphragm and costal pleura; the long adhesions well smoothed off; pleura-costalis shining and healthy. Also, the surface of the lung, when there were no adhesions, sound and right; all the lung white, and free for the entrance of air, except the base, in which was a cyst containing a pint or two of pus. Loose in this pus was a hard mass, as large as a two-quart measure, looking like marble; when cut through its centre, it appeared like the brittle, hardened lining in case 1. It appeared as though a piece of lung had been detached by suppuration and enclosed in an air-tight cyst, by which decomposition was prevented. The other lung and the chest were sound. It is to be inferred, as there were adhesions, that there had been pleurisy and deposit of lymph and serum, as in case 1, and that Nature had commenced the cure by absorbing the serum from the chest, and the lymph from the free pleural surface, and smoothed off every thing to a good working condition. The lump in the cyst was brittle and irregular on its surface, as though it was dissolving in the pus. No good reason can be given why Nature should not consummate the work which she had so wisely begun.

Case 3.—This cow had been sick fourteen days; was coughing and breathing badly; percussion dull over both chests and respiration feeble. Killed.

Autopsy.—Both chests filled with water; deposits of lymph over all the pleura-costalis, presenting the same velvety, furzy appearance as in Case 1. Both lungs were hardened at the base, and the left throughout its whole extent, and firmly adherent to diaphragm and costal pleura, near the spine. The right lung had nearly one-third of its substance in a condition for the entrance of air; but this portion, even, was so compressed with the water, that a few hours longer would have terminated the case fatally without State aid. This case had not proceeded far enough for the formation of the cyst or pus.

In Mr. Needham's herd, about twenty-eight days intervened between the first and second case of disease, instead of about fourteen, as in Mr. Olmstead's.

Case 4.—A nice heifer, in fair condition, eating well, only having a slight cough. Percussion dull over base of the left lung.

Autopsy.—Base of left lung adherent to diaphragm and costal pleura; lung hardened. On cutting into base, found ulceration and a head of Timothy grass, four or five inches long. Animal in every other way well.

Case 5.—This cow was taken, January 1st, with a cough, difficulty of breathing, and the other symptoms of the disease, and continued sick till March 1st. On taking her out, April 12th, to be slaughtered, she capered, stuck up her tail, snuffed, and snorted, showing all the signs of feeling well and vigorous.

Autopsy.—Right lung firmly adherent to diaphragm and costal pleura, near the spine. Base of lung hardened, containing a cyst with a large lump, of the size of a two-quart measure, floating in pus; outside of the lump was of a dirty yellow-white, irregular, brittle, and cheesy; the inside mottled, or divided into irregular squares; red like muscle, and breaking under the finger, like liver. Costal pleura smooth, shining; adhesions where there was motion; card-like and polished; no serum; lung apparently performing its functions well, except for a short distance above the air-tight cyst, where it was still hardened. It would seem as though Nature was intending to dissolve this lump, and carry it off by absorption. She knows how, and would have done it, in the opinion of the writer, had she been allowed sufficient time.

Case 6.—Was taken December 18th, and was very sick; in three weeks she was well, except a cough, quite severe, and so continued till about the first of March, when she coughed harder and grew worse till seven days before she was killed, April 12th, when she brought forth a calf, and then commenced improving again.

Autopsy.—Right lung adherent to diaphragm and costal pleura. At its base, was a flabby, fluctuating cyst. In cutting into it, the lump was found to be breaking up by decomposition, and scenting badly. Every thing else normal. Was not the cyst broken through by some accident, thus letting in the air, when she grew worse? Would she not, probably, have overcome this disagreeable accident, and recovered, in spite of it? This cow's hair did not look well, as did that of those in which the cyst was air-tight; but still she was beginning to eat well again, and appeared in a tolerable way for recovery.

Case 7.—This heifer had coughed slightly for six weeks, but the owner said he thought no one going into his herd would notice that any thing was the matter with her.



Autopsy.—Slight adhesions of lung to diaphragm. Near these adhesions are small cysts, of the size of a walnut, containing pus and cheesy matter; about the cysts a little way the lung was hardened, say for half an inch. There were several cysts, and they appeared as though the inflammation attacked only the different lobes of the lungs, leaving others healthy between,—Nature throwing out coagulable lymph around the diseased lobe, and forming thereby an air-tight cyst, cutting around the diseased lobe by suppuration, so that it could be carried off by absorption.

In the herd to which this animal belonged, nine days after the first cow died, the second case occurred. First cow was sick five weeks. The time of incubation could not have been over six weeks,—probably not over three weeks. Of these cows, one improved in eight weeks, the other in three weeks.

Case 8.—This cow had been sick three weeks. Killed.

Autopsy.—Large quantities of serum in left chest; lung adherent, and hardened at base. On cutting into the hardened lung, one side of the lump was found separated from the lung, with pus between the lines of separation, and the forming coat of the cyst outside of the pus; the other side of the lump was part and parcel of the hardened lung which had not yet had time to commence separation. The costal pleura was covered with organized lymph to the thickness of an inch, with the usual characteristics. The right chest contained a small quantity of serum, and had several small, hardened red spots in that lung, with some tender, weak adhesions; but most of the right lung was healthy.

Case 9.—Sick four weeks. Killed.

Autopsy.—Right lung hardened at base; adherent to diaphragm and costal pleura; lump separated on one side only. Cyst beginning to form, outside of separation; pus between cyst and lump, but in a very small quantity.

These two cases settle the character of the lump, and the manner of the formation of the cyst; the lump being lung and lymph, cut out by suppuration,—the cyst being organized, smoothed off by suppuration, friction, etc.

Case 10.—Killed. Hair looked badly; but the cow, it was said, ate, and appeared well. This case, however, occurred in a herd, of which no reliable information, in detail, could be procured.

Autopsy.—Base of lung hardened, adherent to diaphragm; containing a cyst, in which was a lump, of the size of a quart measure, but little pus. This lump had air-tubes running through it, which were not yet cut off by suppuration; and in one place, the cyst was perforated by a bronchial tube, letting in the external air to the lump, which was undergoing disorganization, and swelling badly. When cut into, it did not present the red, mottled, organized appearance of those cases with air-tight cysts.

Quite a number of other cases were examined, but these ten present all the different phases. One or two cases are needed of an early stage of the disease, to settle the point, whether, in all cases, the primary disease is lung fever, and the pleurisy a continuation, merely, of the primary disease; together with some six or eight cases, during five, six, seven, eight months from attack, and so on till entire, final recovery. Some cases were sick almost a year since, and are now apparently quite well; perhaps all the lump and pus are not yet gone. Many practitioners think that no severe case will ever recover, and some think that none ever get entirely well. Others, however, can see no reason why, as a general rule, all single cases should not recover, and all double cases die.

The disease was the most fatal in Mr. Chenery's (the original) herd, although it was the best-fed and the warmest-stabled. He attributed the fatality, in part, to a want of sufficient ventilation. The other herds, in which all the fatal cases occurred in two hours, consisted, originally, one of forty-eight head, of which thirteen died, or were killed, to prevent certain death; of twenty-three head, of which seven died; of twenty-two head, of which eight died; of twenty-two head, of which eight also died; and of twenty-one head, of which four died. A little less than thirty per cent., therefore, of these herds died.

This estimate excludes the calves. Most of the cows which had not calved before being attacked, lost their calves prematurely. The probable time of incubation, as deduced from those Massachusetts cases, is from two to three weeks; of propagation, about the same time; the acute stage of the disease lasting about three weeks.

The author's attention was first directed to this disease, upon its appearance in Camden and Gloucester counties, New Jersey, in the year 1859, at about the same time it made its advent in Massachusetts. The singularity of this coincidence inclined him for the time to regard the disease as an epizooetic—having its origin in some peculiar condition of the atmosphere—rather than as a contagious, or infectious disease, which position was at that time assumed by him.

This opinion was strengthened by the fact, that no case occurring in New Jersey could be traced to a Massachusetts origin, in which State it was claimed that the disease never had existed in this country previous to its introduction there. It was, therefore, denied by the veterinary surgeons in the Eastern States, that the disease in New Jersey was the true European pleuro-pneumonia, but it was called by them the swill-milk disease of New York City, and it was assigned an origin in the distillery cow-houses in Brooklyn and Williamsburg.

In 1860 it found its way across the Delaware River into Philadelphia, spreading very rapidly in all directions, particularly in the southern section of the county, known as The Neck,—many of the dairymen losing from one third to one half of their herds by its devastating influence. In order to save themselves—in part, at least—from this heavy loss, many of them, upon the first indications of the malady, sent their animals to the butcher, to be slaughtered for beef. In 1861 the disease found its way into Delaware, where its ravages were severely felt. So soon, however, as it became known that the disease was infectious or contagious, an effort was made to trace it to its starting-point; but, in consequence of the unwillingness of dairymen to communicate the fact that their herds were affected with pleuro-pneumonia, all efforts proved fruitless. In 1860 the disease found its way up the Delaware to Riverton, a short distance above the city of Philadelphia. A cattle-dealer, named Ward, turned some cattle into a lot, adjoining which several others were grazing. The residents of this place are chiefly the families of gentlemen doing business in the city, many of whom lost their favorite animals from this destructive malady.

The first case occurring at this place, to which the author's attention was called, was a cow belonging to Mr. D. Parrish, which had been exposed by coming in contact with Ward's cattle, had sickened, and died. An anxiety having been manifested to ascertain the cause of the death, the author made an examination of the animal, which, upon dissection, proved the disease to be a genuine case of the so-called pleuro-pneumonia. This examination was made August 20th, 1860, at the time of the Massachusetts excitement. Two cows, belonging to Mr. Rose, of the same place, had been exposed, and both had taken the disease. His attention having been called to them, he placed them under the author's treatment, and by the use of diffusible stimulants and tonics, one of these animals recovered, while the other was slaughtered for an examination, which revealed all the morbid conditions so characteristic of this disease.

The next case was a cow belonging to Mr. G. H. Roach, of the same place, which had been grazing in a lot adjoining that of Mr. Parrish. This cow was killed in the presence of Charles Wood, V.S., of Boston, Mass., and Arthur S. Copeman, of Utica, N. Y., who was one of a committee appointed by the New York State Agricultural Society for the purpose of investigating the disease. Both of these gentlemen having witnessed the disease in-all its forms, as it appeared in Massachusetts, were the first to identify this case with those in that State.

Upon opening the cow, the left lung was found to be completely consolidated, and adhered to the left side, presenting the appearance usual in such cases. As she was with calf, the lungs of the foetus were examined, disclosing a beautiful state of red hepatization.

The author's attention was next called to the herd of Mr. Lippincott, a farmer in the neighborhood, who had lost several cattle by the disease; but as he had been persuaded that treatment was useless, he abandoned the idea of attempting to save his stock in that way. From Riverton it soon spread to Burlington, some ten miles farther up the river, where it carried off large numbers of valuable cattle, and it continued in existence in that neighborhood for some time.

The disease was not then confined to these localities alone, but has spread over a large extent of country,—and that, too, prior to its appearance in Massachusetts, as will be shown by extracts from the following letters, published in the Country Gentleman:—

"We have a disease among the cattle here, I will class it under these names,—congestion of the lungs, terminating with consumption, or dropsy of the chest. Now, I have treated two cases; one five years since, as congestion,—and the first is still able to eat her allowance, and give a couple of pails of milk a day,—and the other, quite recently. The great terror of this disease is, that it is not taken in its first stages, which are the same in the cow as in the man—a difficulty in breathing, which, if not speedily relieved, terminates in consumption or dropsy. I have no doubt that consumption is contagious; but is that a reason why every one taken with congestion should be killed to check the spread of consumption? So I should reason, if I had pleuro-pneumonia in my drove of cattle. J. BALDWIN.

"NEWARK, N. J., June 11, 1860."

"I notice that a good deal of alarm is felt in different parts of the country about what is called the cattle-disease.

"From the diagnosis given in the papers, I have no doubt this is pleuro-pneumonia, with which I had some acquaintance a few years ago. If it is the same, my observation and experience may be of some service to those suffering now.

"It was introduced into my stock, in the fall of 1853, by one of my own cows, which, in the spring of that year, I had sent down to my brother in Brooklyn, to be used during the summer for milk. She was kept entirely isolated through out the summer, and in November was sent up by the boat. There were no other cattle on the boat at the time, nor could I learn that she had come in contact with any in passing through the streets on her way to the boat; and she certainly did not, after leaving it, until she mingled with her old companions, all of whom were then, and long afterward, perfectly well. After she had been home about two weeks, we noticed that her appetite failed, and her milk fell off: she seemed dull and stupid, stood with her head down, and manifested a considerable degree of languor.

"Soon her breathing became somewhat hurried, and with a decided catch in it; she ground her teeth; continued standing, or, if she lay down, it was only to jump up again instantly. Her cough increased, and so, too, a purulent and, bloody discharge from her nostrils and mouth. The excrement was fetid, black, and hard.

"In this case, we twice administered half a pound of Epsom-salts, and afterward, a bottle of castor-oil. Very little, but a temporary effect was produced by these doses.

"The symptoms all increased in intensity; strength diminished; limbs drawn together; belly tucked up, etc.; until the eight day, when she partly lay, and partly fell down, and never rose again.

"In a post-mortem examination, the lungs were gorged with black, fetid blood; the substance of them thickened and pulpy. The pleura and diaphragm also showed a good deal of disease and some adhesion. This cow, on her arrival here, was put in her usual place in the stable, between others. She remained there for two or three days after she was taken sick, before we removed her to the hospital.

"In about three weeks from the time she died, one and then the other of those standing on either side of her were attacked in the same way, and with but two days between. This, certainly, looks very much like contagion; but my attention had not before been called to this particular disease, and to suppose inflammation or congestion of the lungs contagious was so opposed to my preconceived notions, that I did not even then admit it; and these animals were suffered to remain with the others until their own comfort seemed to require the greater liberty of open pens.

"One of them was early and copiously bled twice, while Epsom-salts were administered, both by the stomach and with the injective-pump. The other we endeavored to keep nauseated with ipecacuanha, and the same time to keep her bowels open by cathartic medicine. All proved to be of no avail. They both died,—the one in ten, the other in thirteen days. Before these died, however, others were taken sick. And thus, later, I had eight sick at one time.

"The leading symptoms in all were the same, with minor differences; and so, too, was the appearance after death, on examination.

"Of all that were taken sick (sixteen) but two recovered; and they were among those we did the least for, after we had become discouraged about trying to cure them. In all the last cases we made no effort at all, but to keep them as comfortable as we could. In one case, the acute character of the disease changed to chronic, and the animal lived six or eight weeks, until the whole texture of the lungs had become destroyed. She had become much emaciated, and finally died with the ordinary consumption.

"At the time the first case appeared, I had a herd of thirty-one animals, all valuable Ayrshires, in fine condition and healthy. In all the first cases, I had a veterinary surgeon of considerable celebrity and experience, and every ordinary approved method of treatment was resorted to and persevered in. The last cases—as before intimated—we only strove to make comfortable.

"After I had paid the third or fourth forfeit, I began to awake up to the idea that the disease was, in a high degree, contagious, whether I would have it so or not; and that my future security was in prevention, and not in remedy. I therefore separated all the remaining animals; in no instance having more than two together, and generally but one in a place.

"All were removed from the infected stalls, and put into quarantine. Isolated cases continued to occur after this for some weeks, but the spread of the disease was stayed; nor did a single case occur after this, which we did not think we traced directly to previous contact.

"It is impossible to account for the first case of which I have spoken. But, as the cow in that case was put into a sale-stable in New York while waiting for the boat,—though there were no cattle then present,—yet I have supposed it not unlikely that diseased animals had been there, and had left the seeds of the disease.

"But, account for this case as we may,—and I have no doubt it is sometimes spontaneous,—I feel convinced it is very highly contagious; and that the only safety to a herd into which it has been introduced, is in complete isolation,—and in this I feel as convinced that there is safety. My cattle were not suffered to return to the barnyard or to any part of the cattle-barns, except as invalids were sent to 'the hospital' to die, until late the next fall, i.e., the fall of 1854. In the mean time, the hay and straw had all been removed; the stables, stalls, cribs and all thoroughly scrubbed with ashes and water, fumigated, and white washed with quicklime. I have had no case since, and am persuaded I should have avoided most of those I had before, if I had reasonably admitted the evidence of my senses in the second and third cases. E. P. PRENTICE. MOUNT HOPE, June 14th, 1860."

The author's experience with the disease, during the last year in New Jersey, proves the efficacy of remedial agents when applied in the early stages of the disease. Late in the spring of 1861, Mr. J. E. Hancock, of Burlington County (residing near Columbus, N. J.), purchased some cattle in the Philadelphia market, which, after they were driven home, he turned in with his other stock. Soon after this purchase, one of the animals sickened and died. This was in August; after which time Mr. H. lost eight cows,—having, at the time of the death of the last animal, some five others sick with the same disorder.

The author was called in, December 8th, 1861, and the five animals then placed under his treatment. On the 12th of December, in the same year, one of these cows, at his suggestion, was killed, which, upon the post-mortem examination, beautifully illustrated the character of the disease. The right lung was comparatively healthy; the left one completely hepatized, or consolidated, and so enlarged as to fill up the left cavity of the chest to it's utmost capacity. This lung weighed thirty pounds. There was no effusion in the chest, but there was considerable adhesion of the pleura-costalis and pleura-pulmonalis. All the other tissues appeared to be healthy.

To the remaining animals, was administered the following: aqua ammonia, three drachms; nitric ether, one ounce; pulverized gentian-root, half an ounce; mixed with one quart of water, and drenched three times a day. The last thing at night was given a teaspoonful of phosphate of lime, mixed in a little feed, or in gruel. Setons, or rowels, in the dewlap are also very beneficial. Under this treatment they all did well.

Soon after the introduction of the disease into this herd, it found its way to the herd of William Hancock, a brother of the former gentleman, who had an adjoining farm. In this herd one cow died, and the disease was found by the author developed in four more cows and two oxen, all of which—with a single exception—did well under the above treatment. The disease afterward showed itself in the herd of John Pope, half a mile distant, who lost nine animals by it.

Thursday, December 19th, was selected for the purpose of making an examination of the Hancock herds; but, after some ten or twelve animals had been examined and all pronounced tainted with the disease, the owners concluded to stop the investigation, expressing themselves dissatisfied with the result, as not one of the animals examined had shown any symptoms of disease. In order to convince them of the correctness of the diagnosis, a cow was selected and destroyed, which the Hancocks believed to be in perfect health. Upon opening the animal, several small patches of hepatized lung were brought into view. Upon making a longitudinal section of the lump, as both were involved, they presented a red, speckled appearance. All the other tissues were healthy. The symptoms in these cases were quite different from any which had been previously seen in an experience of three years with the disease in and about Philadelphia, inasmuch as they were not preceded by cough; in fact, cough did not appear in many of the animals at any time during the progress of the disease. The animals looked, ate, and milked well, previously to the development of the disease, so that the owners were thrown completely off their guard by these deceptive symptoms of health. Knowing the uncertain character of this disease, and wishing to stay its ravages, a suggestion was made by the author as to the propriety of having the entire herd killed for beef. This was done the more readily, as the sale of the meat is legalized in Europe, it being regarded as uninjured, and therefore wholesome meat. This suggestion was acted upon, and thus these two farms were rid of this dreadful scourge at one blow.

Mr. A. Gaskill, of Mount Holly, N. J., purchased a cow from one of the Hancocks, for his own family use, which was sent to Mr. Frank Lippincott's to pasture and turned in with Mr. L.'s own herd. Soon after, this cow sickened and died. This was soon followed by the loss of six of Mr. L.'s own cattle,—three oxen, two cows, and one steer. From this herd, it was communicated to the Widow Lippincott's, who occupied a neighboring farm; as also to Mr. Cleavenger's, who lost four animals; and to Mr. Smith's, who had, at one time, seven animals sick; and from Cleavenger's to Noaknuts, who lost two cows. Some two or three cows, belonging to Mr. Logan, in the same neighborhood, got upon the road and broke into Mr. Lippincott's pasture, mixing with his herd. As soon as Mr. Logan was informed of the fact, he isolated these cows by enclosing them in a pen at some distance from his other cattle; but they managed to break out, and mingled with his other stock. It could scarcely be expected that his herd could escape the disease, considering the exposure to which they had been subjected. The disease manifested itself in the herds of several other farmers in the country, but space will not allow a more extended notice of the subject.

The treatment which has been found most successful in this country is as follows, all of which has been tested by the author upon various occasions: In the acute, inflammatory stage of the disease, give ten drops of Flemming's tincture of aconite in water, every four hours, until a change takes place; follow this with aqua ammonia, three drachms; nitric ether, one ounce; pulverized gentian-root, one half an ounce; water, one quart. Drench three times a day, and give, late in the evening, a tablespoonful of phosphate of lime, in a little feed, or drench with gruel. Put setons, or rowels in the dewlap, so as to have a dependent opening.