"You will not need to be told that the science of metallurgy has advanced quite far with us. All our metals can be made transparent, if we like; those pillars are colored variously in different regions so as to be clearly distinguishable and prevent collisions of flying apparatus."

But Van Emmon and Billie were both more interested in what lay between the columns. They scarcely noticed that there were no people in sight at the time. The ground was covered with an indescribable wealth of color; and it was only by a close examination that the buildings could be distinguished as such.

For they were all made of that semi-transparent stuff. Of every conceivable tint and shade, the structure showed an utter lack of uniformity in size, shape or arrangement. Moreover, the ground was absolutely packed with them; they spread as far as the eye could reach.

But if there was profusion, there also was confusion—apparently. Streets ran anywhere and everywhere; there was no visible system to anything. And where there was no space for a building, invariably there was a shrub, a bush or a small tree of some kind, all in full flower. The only sign of regularity to be seen was in the roofs—practically all of them were flat. Whether the building was some rambling, loosely gathered agglomeration of vari-colored wings, or a single, towering skyscraper of one tint, almost inevitably it was crowned with a perfectly level surface.

"I see," said Van Emmon, thoughtfully. "You have no rain."

"Precisely"—from Estra. "We have the air completely under our control. We give our vegetation artificial showers when we think it should have it, not when nature wills; and similarly we use electricity instead of sunlight that we may stimulate its growth."

"In short"—Van Emmon put it as the car slid slowly down the remaining distance—"in short, you have abolished the weather."

The Venusian nodded. "And I'll save you the trouble of suggesting," he added, "that we are nothing more nor less than hothouse people!"



V

THE HUMAN CONSERVATORY

"But there is this difference," he cautioned as they stepped out of the elevator into a sort of a plaza, "that, whereas you people on the earth have only begun to use the hothouse principle, we here have perfected it.

"I suggest that you waste no time looking for faults."

Van Emmon stared at the doctor. "How does this idea fit your theory, Kinney—that Venus is simply the earth plus several thousand extra generations of civilization?"

"Fit?" echoed the doctor. "Fits like a glove. We humans are fast becoming a race of indoor-people despite all the various "back-to- nature" movements. Look at the popularity of inclosed automobiles, for example.

"The only thing that surprises me"—turning to their guide—"is that you use your legs for their original purpose."

Estra smiled, and pointed out something standing a few feet away. It was a small, shuttle-shaped air-craft, with clear glass sides which had actually made them overlook it at first. Peering closer they saw that the plaza and surrounding streets were nearly filled with these all but invisible cars.

The Venusian explained. "You marvel that I use my legs and walk the same as you do. I am glad you have brought up this point, because it is a fact that our people use mechanisms instead of bodily energy, almost altogether. These cars you see are universally used for transportation. I am one of the very few who appreciate the value of natural exercise."

"Do you mean to say," demanded Van Emmon, "that the average Venusian does no walking?"

"Not a mile a year," said Estra gravely.

"Just what he is obliged to do indoors from room to room." And he involuntarily glanced down at his own extremely thin legs.

The architect's eyes widened with a growing understanding. "I see now," she murmured. "That's why there was no one else to greet us."

The Venusian smiled gratefully. "We thought it best. You'd have been shocked outright, I am sure, had you been introduced to a representative Venusian without any explanation."

They fell silent. Still, without moving from the point where they had left the elevator, the four from the earth examined the surrounding buildings in a renewed effort to see some system in their arrangement. Directly in front of them was a particularly large structure. Like all the rest, it was of hopelessly irregular design, yet it had a large domed central portion which gave it the appearance of an auditorium; and the effect was further borne out by a subdued humming sound which seemed to come from it.

Smith asked Estra if it were a hall.

"Yes and no," was the answer. "It fills the purpose of a hall, but is not built on the hall plan." And Smith tried to stare through the translucent walls of the thing.

The other buildings within immediate reach were of every possible appearance. Some would have passed for cottages, others for stores, still others for the most fanciful of studios. And nowhere was there such a thing as a sign, even at the street corners, much less on a building.

"Not that we would be able to read your signs, if you had them," commented the doctor, "but I'd like to know how your people find their way without something of that kind to guide them."

Estra's smile did not change. "That is something you will understand better before long," said he, "provided you feel ready to explore a little further."

The four looked at each other in question, and suddenly it struck them all that they were a rather pugnacious-looking crew in their cumbersome suits of armor and formidable helmets. The doctor turned to Estra.

"You ought to know"—he appealed—"whether we can take off these suits now."

"It would be best," was the reply. "You will find the air and temperature decidedly more warm and moist than what you have been used to, but otherwise practically the same. There is a slightly larger proportion of oxygen; that is all. Just imagine you are in a hothouse."

Smith and the doctor were already discarding their suits. Van Emmon and Billie followed more slowly; the one, because he did not share the doctor's confidence in their guide; the other, because of a sudden shyness in his presence. The Venusian noted this.

"You need not feel any embarrassment," said he to Billie's vast astonishment. "There is no distinction here between the dress of the two sexes." And again all four marveled that he should know so much about them.

Once out of the armor the visitors felt much more at ease. The slightly reduced gravitation gave them a sense of lightness and freedom which more than balanced the junglelike oppressiveness of the air. They found themselves guarding against a certain exuberance; perhaps it was the extra oxygen, too.

They strode toward the large structure directly ahead. At its entrance— a wide, square portal which opened into a fan-shaped lobby—Estra paused and smiled apologetically—as he mopped his forehead and upper lip with a paper handkerchief, which he immediately dropped into a small, trap- covered opening in the wall at his side.

These little doors, by the way, were to be seen at frequent intervals wherever they went. Incidentally not a scrap of paper or other refuse was to be noted anywhere—streets and all were spotless.

As for Estra—"I am not accustomed to moving at such speed," he explained his discomfort. "If you do not mind, please walk a little more leisurely."

They took their time about passing through this lobby. For one thing, Estra said there would have to be a small delay; and for another, the walls and ceilings of the space were most remarkably ornamented. They were fairly covered with what appeared, at first glance, to be absolutely lifelike paintings and sculptures. They were so arranged as to strengthen the structural lines of the place, and, of course, they were of more interest to Billie than to the others. [Footnote: The specialist in architecture and related subjects is referred to E. Williams Jackson's report to the A.I.A., for details of these basrelief photographs.]

Desiring to examine some of the work far overhead, Billie clambered up on a convenient pedestal in order to look more closely. She took the strength of things for granted, and put her weight too heavily on a molding on the edge of the pedestal; with the result that there was a sharp crack; and the girl struck the floor in a heap. She got to her feet before Van Emmon could reach her side, but her face was white with pain.

"Sprained—ankle," said she between set lips, and proceeded to stump up and down the lobby, "to limber up," as she said, although her three companions offered to do anything that might relieve her.

To the surprise of all, Estra leaned against a pillar and watched the whole affair with perfect composure. He made no offer of help, said nothing whatever in sympathy. In a moment he noticed the looks they gave him—their stares.

"I must beg your pardon," he said, still smiling. "I am sorry this happened; it will not be easy to explain.

"But you will find all Venusians very unsympathetic. Not that we are hard hearted, but because we simply lost the power of sympathy.

"We do not know what pity is. We have eliminated everything that is disagreeable, all that is painful, from our lives to such an extent that there is never any cause for pity."

The three young people could say nothing in answer. The doctor, however, spoke thoughtfully:

"Perhaps it is superfluous; but—tell me—have you done away with injustice, Estra?"

"That is just the point," agreed the Venusian. "Justice took the place of pity and mercy; it was so long ago I am barely able to appreciate your own views on the subject."

Billie, her ankle somewhat better, turned to examine other work; but at the moment another Venusian approached from the upper end of the lobby. Walking slowly, he carried four small parcels with a great deal of effort, and the explorers had time to scrutinize him closely.

He was built much like Estra, but shorter, and with a little more flesh about the torso. His forehead bulged directly over his eyes, instead of above his ears, as did Estra's; also his eyes were smaller and not as far apart. His whole expression was equally kind and affable, despite a curiously shriveled appearance of his lips; they made the front of his mouth quite flat, and served to take attention away from his pitifully thin legs.

Estra greeted him with a cheery phrase, in a language decidedly different from any the explorers were familiar with. In a way, it was Spanish, or, rather, the pure Castilian tongue; but it seemed to be devoid of dental consonants. It was very agreeable to listen to.

Estra, however, had taken the four parcels from his comrade, and now presented him to the four, saying that his name was Kalara, and that he was a machinist. "He cannot use your tongue," said the Venusian. "Few of us have mastered it. There are difficulties.

"As for these machines"—unwrapping the parcels—"I must apologize in advance for certain defects in their design. I invented them under pressure, so to speak, having to perfect the whole idea in the rather short time that has elapsed since you, doctor, began the sky-car."

"And what is the purpose of the machines?" from Billie, as she was about to accept the first of the devices from the Venusian.

For some reason he appeared to be especially interested in the girl, and addressed half of his remarks to her; and it was while his smiling gaze was fixed upon her eyes that he gave the answer:

"They are to serve"—very carefully—"partly as lexicons and partly as grammars. In short, they are mechanical interpreters."



VI

THE TRANSLATING MACHINES

"First, let me remind you," said the Venusian, "of our lack of certain elements that you are familiar with on the Earth. We have never been able to improve on the common telephone. That is why we must still assemble in person whenever we have any collective activity; while on the Earth the time will come when your wireless principle will be developed to the point of transmitting both light and sound; and after that there will be little need of gatherings of any sort."

Then he explained the apparatus. It consisted of a miniature head- telephone, connected to a small, metallic case the size of a cigar-box, the cover of which was a transparent diaphragm. Estra did not open the case, but showed the mechanism through the cover.

"Essentially, this is a 'word-for-word' device," said he, pointing to a swiftly revolving dial within the box. "On one face of that dial are some ten thousand word-images, made by vibration, after the phonograph method. Directly opposite, on the other face, are the corresponding words in the other language. The disk is rotating at such an enormous speed that, for all practical purposes, any word which may chance to be spoken will be translated almost instantaneously."

He indicated two delicate, many-tentacled "feelers," as he called them, one on each face of the disk. One of these "felt" the proper word-image as it whirled beneath, while the other established an electrical contact with the corresponding waves beneath, at the same time exciting a complicated-looking talking machine.

"That," commented Estra, "is not so easy to explain. It transforms this literal translation into an idiomatic one. Perhaps you will understand its workings a little later when you learn how and why I am able to use your own language."

By this time the four had reached the point where nothing could surprise them. They were becoming accustomed to the unaccustomed. Had they been told that the Venusians had abolished speech altogether, they would have felt disappointed, but not incredulous. However, the doctor thought of something.

"Have you any extra 'records,' to be used in case we visit some other nations while we are here?"

For just a second the Venusian was puzzled; then his smile broadened. "The one record will do," said he, "wherever you go."

"A universal language!" Billie's eyes sparkled with interest.

"Long, long ago," Estra said. "It was established soon after our league of nations was formed."

"Does the league actually prevent war and promote peace?" demanded Van Emmon. This had been a disputed question when the four left the earth.

"We no longer have a league of nations," said their guide slowly. And instantly the four were eying him eagerly. This was really refreshing, to find that the Venusians were actually lacking in something.

"So it didn't work?" commented the doctor, disappointed.

But the Venusian's smile was still there. "It worked itself out," said he. "We have no further use for a league. We have no more nations. We are now—one."

And he helped them adjust the machines.

The cases were slung over their shoulders and the telephones clamped to their ears. When all ready, Estra began to talk, and his voice came nearly as sharp and clear through the apparatus as before. It was modified by a metallic flatness, together with a certain amount of mechanical noise in which a peculiar hissing was the most noticeable. Otherwise he said:

"I am now using my own language. If I make any mistakes, you must not blame the machine. It is as nearly perfect as I was able to make it."

He then asked them what blunders they noted. Billie, who was the most enthusiastic about the thing, declared that they would have no trouble in understanding; whereupon Estra quietly asked:

"Do you feel like going now to try them out?"

Once more an exchange of glances between the four from the earth. Clearly the Venusians were extremely considerate people, to leave their visitors in the care of the one man, apparently, who was able to make them feel at home. There seemed to be no reason for uneasiness.

But Van Emmon still had his old misgivings about Estra. There was something about the effeminate Venusian which irritated the big geologist; it always does make a strong man suspicious to see a weaker one show such self-confidence. Van Emmon drew the doctor and Billie aside, while Smith and Estra went on with the test. Said Van Emmon:

"It just occurred to me that the cube might look pretty good to these people. You remember what this chap said about their lack of some of our chemicals. What do you think—is it really safe to put ourselves entirely in their power?"

"You mean," said the doctor slowly, "that they might try to keep us here rather than lose the cube?"

Van Emmon nodded gravely, but Billie had strong objections. "Estra doesn't look like that sort," she declared vehemently.

"He's too good natured to be a crook; he needs a guardian rather than a warden."

It flashed into the doctor's mind that many a woman had fallen in love with a man merely because he seemed to be in need of some one to take care of him.

That is, the self-reliant kind of woman; and Billie certainly was self- reliant. Something of the same notion came vaguely to the geologist at the same time; and with a vigor that was quite uncalled for, he urged:

"I say, 'safety first.' We shouldn't have left the cube unguarded. I propose that one of us, at least, return to the surface while the others attend this meeting—or trap, for all we know."

"All right," said Billie promptly. "Get Estra to show you how to use the elevator, and wait for us in the vestibule."

Van Emmon's face flamed. "That isn't what I meant!" hotly. "If anybody goes to the cube, it should be you, Billie!"

If Billie did not notice the use of her nickname, at least the doctor did. The girl simply snorted.

"If you think for one second that I'm going to back out just because I'm a woman, let me tell you that you're very badly mistaken!"

Van Emmon turned to the doctor appealingly, but the doctor took the action personally. He shook his head. "I wouldn't miss this for anything, Van. Estra looks safe to me. Go and ask Smith; maybe he is willing to be the goat."

The geologist took one good look at the engineer's absorbed, unquestioning manner as he listened to the Venusian, and gave up the idea with a sigh. For a moment he was sour; then he smiled shyly.

"I'm more than anxious to meet the bunch myself," he admitted; and led the way back to Estra. The Venusian looked at him with no change of expression, although there was something very disconcerting in the precocious wisdom of his eyes. Their very kindliness and serenity gave him an appearance of superiority, such as only aggravated the geologist's suspicions.

But there was nothing to do but to trust him. They followed him through two sets of doors, which slid noiselessly open before them in response to some mechanism operated by the Venusian's steps. This brought them to another of the glass elevators, in which they descended perhaps ten feet, stepping out of it onto a moving platform; this, in turn, extended the length of a low dimly lighted passageway about a hundred yards long. When they got off, they were standing in a small anteroom.

The Venusian paused and smiled at the four again. "Do you feel like going on display now?" he asked; then added: "I should have said: 'Do you feel like seeing Venus on display, for we all know more or less about you already.'"

But the visitors were braced for the experience. Estra looked at each approvingly, and then did something which made them wonder. He stood stock still for perhaps a second, his eyes closed as though listening; and then, without explanation, he led the way through an opal-glass door into a brilliantly lighted space.

Next moment the explorers were standing in the midst of the people of Venus.



VII

THE ULTIMATE RACE

The four were at the bottom of a huge, conelike pit, such as instantly reminded the doctor of a medical clinic. The space where they stood was, perhaps, twenty feet in diameter, while the walls enclosing the whole hall were many hundreds of feet apart. And sloping up from the center, on all sides, was tier upon tier of the most extraordinary seats in all creation.

For each and every one of those thousands of Venusians was separately enclosed in glass. Nowhere was there a figure to be seen who was not installed in one of those small, transparent boxes, just large enough for a single person. Moreover—and it came somewhat as a shock to the four when they noted it—the central platform itself was both covered and surrounded with the same material.

"Make yourselves at home," Estra was saying. He pointed to several microphones within easy reach. "These are provided with my translators, so when you are ready to open up conversation, go right ahead as though you were among your own people." And he made himself comfortable in a saddlelike chair, as much as to say that there was no hurry.

For a long time the explorers stood taking it in. The Venusians, without exception, stared back at them with nearly equal curiosity. And despite the extraordinary nature of the proceeding, this mutual scrutiny took place in comparative silence; for while the glass gave a certain sense of security to the newcomers, it also cut off all sound except that low humming.

The nearest row of the people got their closest attention. Without exception, they had the same general build as Estra; slim, delicate, and anemic, they resembled a "ward full of convalescent consumptives," as the doctor commented under his breath. Not one of them would ever give a joke-smith material for a fat-man anecdote; at the same time there was nothing feverish, nervous, or broken down in their appearance. "A pretty lot of invalids," as Billie added to the doctor's remark.

Many observers would have been struck, first, by the extreme diversity in the matter of dress. All wore skin-tight clothing, and much of it was silky, like Estra's. But there was a bewildering assortment of colors, and the most extraordinary decorations, or, rather, ornaments. So far as dress went, there was no telling anything whatever about sex.

"Are they all men?" asked Billie, wondering, of Estra. The Venusian shook his head with his invariable smile. "Nor all women either," said he enigmatically.

But in many respects they were astonishingly alike. Almost to a soul their upper lips were withered and flat. One and all had short, emaciated-looking legs. Each and every one had a crop of really luxuriant hair; the shades varied between the usual blonde and brunette, with little of the reddishness so common on the earth; but there were no bald people at all. On the other hand, there were no beards or mustaches in the whole crowd; every face was bare!

"Like a lot of Chinamen," said Van Emmon in an undertone; "can't tell one from another." But Billie pointed out that this was not strictly true; a close inspection of the faces showed an extremely wide range of distinction. No two chins in the crowd were exactly alike, although not one of them showed any of the resolute firmness which is admired on the Earth. All were weak, yet different.

Neither were there any prominent noses, although there were none that could have been called insignificant. And while every pair of eyes in the place was large, as large as Estra's, yet there was every desirable color and expression.

To sum it all up, and to use the doctor's words: "They've developed a standard type, all right, just as the characteristic American face is the standard Earth type; but—did you ever see such variations?"

Nevertheless, the most striking thing about these people to the eyes of the visitors was their mutual resemblance. For one thing, there seemed to be no nervous people present. There were many children in the crowd, too; yet all sat very still, and only an occasional movement of the hands served to indicate consciousness. In this sense, they were all remarkably well bred.

In another, they were remarkably rude. At any given moment a good half of the people were eating, or, rather, sipping liquids of various sorts from small tumblers. Probably every person in the house, before the affair was over, had imbibed two or three ounces of fluid; but not once was the matter apologized for, nor the four invited to partake.

"So this may be the outcome of our outrageous habit of eating sweetmeats at theaters," muttered the doctor. And again noting the hairless faces: "Just what I said when men first began using those depilatories instead of shaving—no more beards!"

But it was Billie who explained the invariable crop of hair. "No use to look for baldness; they don't wear hats! Why should they, since there's neither sun nor rain to protect their heads from?"

Mainly, however, the architect was interested in the building itself. To her, the most striking feature was not the tremendously arched dome, nor yet the remarkable system of bracing which dispensed with any columns in all that vast space. It was something simpler—there were no aisles.

"Now, what do you make of that?" the girl asked Van Emmon. "How do they ever get to their places?" But he could not suggest anything more than to recall an individual elevator scheme once proposed.

To Smith, one object of interest was the telephone system. Remarkably like those used on the Earth, one was located in each of the tiny glass cages. He was likewise puzzled to account for the ventilation system; each cage was apparently air-tight, yet no Venusian showed any discomfort.

But the geologist, for want of anything strictly within his professional range, interested himself in trying to fathom the moral attitude of these people. He was still suspicious of them, notwithstanding a growing tendency to like every one of their pleasant, really agreeable faces. There was neither solemnity, sourness, nor bitterness to be seen anywhere; at the same time, there was no sign of levity. In every countenance was the same inexplicable mixture of wisdom and benevolence that distinguished Estra. Nowhere was there hostility, and nowhere was there crudity. Somehow, the big geologist would have felt more at home had he seen something antagonistic. Essentially, Van Emmon was a fighter.

At last the four felt their attention lagging. Novelties always pall quickly, no matter how striking. Estra sensed the feeling and inquired:

"Which of you will do the honors?"

Instinctively the three younger folk turned to the doctor. He made no protest, but stepped at once to one of the microphones, put on his most impressive professional face, and began:

"My friends"—and Van Emmon noted a pleased look come into every face about them—"my friends, I do not need to state how significant this meeting is to us all. From what Estra has said, I gather that you have informed yourselves regarding us, in some manner which he has promised to make clear. At all events, I am exceedingly anxious to see your astronomical apparatus."

At this a broad smile came to many of the faces before him; but he went on, unnoticing: "Certainly there is not much I could tell you which you do not already know; Estra's use of our language proves this. I only need to assure you that we will be glad to answer any questions that may occur to you. It goes without saying that we, of course, are filled with delight to find your planet so wondrously and happily populated, especially after our experience on Mercury, of which, I presume, you are informed."

Apparently they were. The doctor went on: "You may be sure that we are fairly bursting with questions. However, we are content to become informed as Estra sees fit to guide us.

"There is just one thing, more than any other, which I would like to know at this time. Why is it that, although you all show a great lack of exercise, and are continually eating, you never appear to be healthy?"

Instantly a Venusian in the fifth row, to the doctor's right, touched his phone and replied: "It is a matter of diet. We have nothing but 'absolute' foods; if you understand what that means."

And from that time on, despite the fact that the explorers asked questions which, at home, would have found hundreds ready and able to answer, on Venus only one person answered any given question, and always without any apparent prearrangement. For a long time they could not account for this.

The doctor motioned for Smith to take his place. The engineer looked a little embarrassed, but cleared his throat noisily and said:

"I am especially struck with the fact that each of you sits in a separate glass pew, or case. Why is this?"

The reply came from one of the few people present who showed any signs of age. He was, perhaps, sixty, and his hair was fast whitening. He said:

"For reasons of sanitation. It is not wise to breathe the breath of another."

"Also," supplemented someone from the other side of that vast pit— "also, each is thereby enabled to surround himself with the electrical influences which suit him best."

Smith stepped back, pondering. The doctor looked to the geologist to take his place, but Van Emmon made way for Billie. At any other time she would have resented his "woman-first" attitude; now she quickly found voice.

"How are you able to get along without aisles? It may seem a foolish question, to you; but on earth we would consider a hall without aisles about as convenient as a room without a door."

Immediately a Venusian directly in front of her, and on a level with her eyes, called out: "Watch me, madam." And quite without an effort beyond touching a button or two, the fellow rose straight into the air, glass and all, and then floated gently over toward the middle of the hall.

"It probably appears complicated to you," explained the Venusian whose side he had just left. "We make use of elements not found on your earth."

Billie's sang froid was not shaken. Instantly she came back energetically: "Apparently your method overcomes gravitation. Why haven't you tried to travel away from your planet?"

And she looked around with the air of one who has uttered a poser, only to have another of the satin-clad people reply, from a point which she was not able to locate:

"Because enough such power cannot be safely concentrated."

As Billie retired, Van Emmon noted with growing irritation that the continuously affable aspect of the Venusians had not altered in any way, unless it was to become even more genial and sure. The big man strode energetically to the microphone, and the other three noted a general movement of interest and admiration as the people inspected him.

"Why," demanded he, "do we see no signs of contention? If you are familiar with conditions on the earth, you surely know that rivalry, in one form or another, is the accepted basis of life. But all of you, here, appear to be perfectly happy, and at the same time entirely sure of yourselves.

"We have just come from a planet where we have seen the principle of combat, of competition, carried so far that it seems to have wrecked the race; so you will pardon my curiosity, I am sure. From your faces, one would conclude that you had abolished self-interest altogether. Just why are you so—well, extraordinarily self-complacent?" And he thrust out his aggressive jaw as though to make up for the lack of chins about him.

"Because there is nothing for us to combat, save within ourselves." This from a wide-faced chap in a bluish-white suit.

"But surely you have rivalry of some sort?"

"No." Another voice added: "Rivalry is the outgrowth of getting a livelihood; on earth it is inevitable, because men do the work. Here, everything is done by machines." Still another put in: "Discontent is the mother of ambition, but we are all content, because each possesses all he desires."

But the geologist was far from satisfied. "Then," said he vigorously, "if you have eliminated all contention, you have nullified the great law of contrasts. You say you are all rich. How do you know, if you have no poverty to contrast it with?

"On earth, we appreciate warmth because we have experienced cold; pleasure, because we know pain; happiness, because we have always had misery with us. If we have not had the one, we cannot value the other.

"If you have never been discontented, how do you know that you are content?"



VIII

THE KEY-NOTE

For a minute or two it looked as though Van Emmon had raised an unanswerable question. There was no immediate reply. Even Estra looked around, as though in wonder at the silence, and seemed on the point of answering of his own accord when a voice came from a man far up on the left. He said:

"A little explanation may be wise. To begin with, you will agree that black is black because white is white; but it doesn't follow that blue is blue because green is green, or red is red. Blue is blue because it is neither green nor red nor any other color. It is blue, not because it contrasts with these other colors, but because it merely differs from them.

"Now, we on Venus do not need poverty, in order to appreciate wealth. Instead, each of us is blessed with his own particular choice of wealth. Each is blessed in a different way; some with children, some with intellect, some with other matters; and the question of mere quantity never enters."

"We do not need pain or misery," spoke up someone else, "any more than you people on the earth require an additional color, in order to appreciate the variety you already have." And then, from a Venusian with an especially strong voice:

"That we are really content, we know absolutely. For each of us, in his own distinctive way, is wholly and peculiarly satisfied."

And it only added to the geologist's irritation to have these striking statements made in a good-humored, impersonal fashion which totally disarmed all opposition. That the Venusians were perfectly sure of their ground, was undeniable; but they had such a cheerful way of looking at it, as though they didn't care a rap whether Van Emmon agreed or not, that—If they'd only have shown some spirit! Van Emmon would have liked it infinitely better if one of them had only become hot about it.

At this point Estra rose in his chair. "I think you had best approach us from a fresh viewpoint," said he in his unfailingly agreeable manner. The doctor nodded vigorously, and again Estra closed his eyes in that odd, hesitating way. Immediately every one in the place, with the exception of a single person in the lowest row, took flight in his or her little glass pew. In a moment the great vault overhead was fairly swarming with people; and in less than a minute the last of them had floated out through one of the arches in the walls.

Estra opened a panel in the central cage, and admitted the Venusian who had stayed behind. She—for it appeared to be a young woman—walked with about the same facility as Estra; but as soon as she had entered the space, took the seat Estra had vacated, and waited.

The action rather disappointed the doctor. He removed the interpreting telephone from his head, and asked:

"I rather thought we were going to meet one of your officials, Estra. We'd hate to go back home without having met your president, or whatever you call your chief executive."

The two Venusians exchanged smiles, and to the surprise of the explorers the woman gave the reply, in language as good as Estra's, but an even sweeter expression: "There is no such thing as a chief executive on Venus, friends."

"I meant," explained the doctor, rattled, "the chairman of your cabinet, or council, or whatever it is that regulates your affairs. Perhaps," with an inspiration, "I should have said, the speaker of your congress."

The Venusian shook her head, still smiling. She hesitated while selecting the best words; and the four noted that, while her features were quite as delicate as Estra's, her face was proportionately larger, and her whole figure better filled out. No one would have said that she was pretty, much less beautiful; but none would deny that she was very good-looking, in a wholesome, intelligent, capable sort of a way. Her name, Estra told them later, was Myrin; and he explained that he and she were associated solely because of their mutual interest in the same planet—the Earth.

Said Myrin: "You are accustomed to the idea of government. We, however, have outgrown it.

"If you stop to think, you will agree that the purpose of government is to maintain peace, on the one hand, and to wage war, on the other. Now, as to war—we haven't even separate nations, any more. So we have no wars. And as for internal conflict—why should we ever quarrel, when each of us is assured all that he can possibly want?"

"So you have abolished government?"

"A very long time ago. You on the earth will do the same, as soon as your people have been educated up to the point of trusting each other."

"You haven't even a congress, then?"

Myrin shook her head. "All questions such as a congress would deal with, were settled ages ago. You must remember that the material features of our civilization have not changed for thousands of generations. The only questions that come up now are purely personal ones, which each must settle for himself."

Van Emmon, as before, was not at all satisfied. "You say that machinery does your work for you. I presume you do not mean that literally; there must be some duties which cannot be performed without human direction, at least. How do you get these duties accomplished, if you have no government to compel your people to do them?"

Myrin looked at a loss, either for the answer itself or for the most suitable words. Estra gave the reply: "Every device we possess is absolutely automatic. There is not one item in the materials we use but that was constructed, exactly as you see it now, many thousands of years ago."

Smith was incredulous. "Do you mean to say that those little glass pews have been in use all that time?"

Estra nodded, smiling gently at the engineer's amazement. "Like everything else, they were built to last. You must remember that we do not have anything like an 'investment,' here; we do not have to consider the question of 'getting our capital back.' So, if any further improvements were to be made, they also would be done in a permanent fashion."

Billie gave an exclamation of bewilderment. "I don't understand! You say that nothing new has been built, or even replaced, for centuries. How do you take care of your increase in population?" thinking of the great crowd that had just left.

Myrin was the one who answered this. As she did so, she got slowly to her feet; and speaking with the utmost care, watched to be sure that the four understood her:

"Ever since the roof was put on, our increase of population has been exactly balanced by our death rate!"

The four followed their guides in silence as they led the way into the plaza. Now, the space was alive with Venusians. The little cages were everywhere floating about in the air; some of the people were laboriously shifting themselves into their aircraft; others were guiding their "pews" direct to nearby houses. The visitors got plenty of curious stares from these quiet miracle-workers, who seemed vastly more at home in the air than on the ground. "As thick as flies," Van Emmon commented.

Estra and Myrin, walking very slowly, took them to a side street, where two of the cigar-shaped cars were standing. Billie and Smith got in with Estra, while Van Emmon and the doctor were given seats beside the Venusian woman. The two cars were connected by telephone, so that in effect the two parties were one.

By this time, the visitors had become so accustomed to the transparent material that they felt no uneasiness as the ground receded below them. Smith, especially, was tremendously impressed with Estra's declaration that the glass was, except for appearance, nothing more nor less than an extremely strong, steel alloy.

Propelled by the unexplained forces which the two drivers controlled by means of buttons in black cases, the two cars began to thread their way through the great roof-columns; and as they proceeded, the four grew more and more amazed at the great extent of the city. For miles upon miles that heterogeneous collection of buildings stretched, unbroken and without system, until the eye tired of trying to make out the limits of it.

"What is the name of this city?" asked Billie, secretly hoping that it might bear some resemblance to "New York." It struck her fancy to assume that this supermetropolis represented what Gotham, in time, might become.

Estra did not take his attention from what he was doing, but answered as readily as ever. "I do not blame you for mistaking this for a city. The fact is, however, that we have no such thing."

Billie stared at him helplessly. "You've abolished cities, too?"

"Not exactly. In the same sense that we have abolished nations, yes. Likewise we have abolished states, also counties. Neither have we such a thing as 'the country,' now.

"My friends, Venus is simply one immense city."



IX

THE SURVIVAL OF ALL

Somehow all four were unwilling to press this question. It did not seem possible that Estra was right, or, if he was, that they could possibly understand his explanation, should he give it. The cars flew side by side for perhaps a hundred miles, while the visitors put in the time in examining the landscape with the never-ending interest of all aeronauts.

Here and there, in that closely-packed surface, a particularly large building was to be noted every half mile or so. "Factories?" asked Billie of Estra, but he shook his head.

"I'll show you factories later on," said he. "What you see are schools." But most observers would have considered the structures severely plain for their purpose.

After a long silence: "I'm still looking for streams," said Van Emmon to Myrin. "Are your rivers as large as ours?"

"We have no rivers," was the calm reply. "Rivers are entirely too wasteful of water. All our drainage is carried off through underground canals."

"You haven't done away with your oceans, too, have you?" the geologist asked, rather sarcastically. But he was scarcely prepared for the reply he got.

"No; we couldn't get along without them, I am afraid. However, we did the best we could in their case." And without signaling to Estra she dove the machine towards the ground. Smith looked for the telephone wires to snap, but Estra seemed to know, and instantly followed Myrin's lead. The doctor noticed, and wondered all the more.

And then came another surprise. As the machines neared the surface, a familiar odor floated in through the open windows of the air-craft; and the four found themselves looking at each other for signs of irrationality. A moment, and they saw that they were not mistaken.

For, although that kaleidoscopic expanse of buildings showed not the slightest break, yet they were now located on the sea. The houses were packed as closely together as anywhere; apparently all were floating, yet not ten square yards of open sea could be seen in any one spot.

Van Emmon almost forgot his resentment in his growing wonder. "That gets me, Myrin! Those houses seem to be merely floating, yet I see no motion whatever! Why are there no waves?"

The doctor snorted. "Shame on you, Van! Don't let our friends think that you're an absolute ignoramus." He added: "Venus has no moon, and no wind, at least under the roof. Therefore, no waves."

Smith put in: "That being the case, there is no chance to start a wave- motor industry here. Neither," as he thought further, "neither for water-power. Having no rain in your mountains, Estra, where do you get your power?"

But it was Myrin who answered. "I suppose you are all familiar with radium? It is nothing more or less than condensed sunlight, which in turn is simply electromagnetic waves; although it may take your scientists a good many centuries to reach that conclusion.

"Well, every particle of the material which composes this planet, contains radioactivity of some sort; and we long ago discovered a way to release it and use it. One pound of solid granite yields enough energy to—well, a great deal of power."

They had now been flying for two hours, and still no end to that thickly-housed, ever different appearance of the ground. Also, although they saw a great many birds, they noted no animals. Finally, Billie could hold in no longer.

"Are we to understand," she demanded of Estra, "that the whole of this planet is as densely populated as we see it?"

"Just that," replied the Venusian. "Why not? The roof makes our climate uniform from pole to pole, while our buildings are such that, whether on land or on sea, they are equally livable."

"But—Estra!" expostulated the girl. "Venus is nearly as big as the earth. And it looks to be as thickly populated as—as Rhode Island! Why, you must have a colossal population; let me see." And she scribbled away in her memorandum book.

But both Smith and the doctor had already worked it out. They looked up, blinking dazedly.

"Over three hundred billion," murmured the doctor, as though dizzy.

The Venusian checked Smith's correction with, "You dropped one cipher, doctor. There are three and a half trillion of us!"

"Good lord!" whispered Van Emmon, all his antagonism gone for the moment. And again the explorers were silent for a long time.

By and by, however—"We have just seen what it meant, there on Mercury," said the doctor, in a low voice, "for the principle of 'the survival of the fit' to be carried to its logical end; for who is to decide what is fitness, save the fittest? One man, apparently, outlived every one else on the planet, and then he also died.

"But here you have gone the limit in the other direction. Of course, we might have known that you long ago abolished poverty, unearned wealth, pestilence, drunkenness and the other causes of premature death; but as for three and a half trillion!"

"Nevertheless," remarked Myrin, "every last one of us, once born, lives to die of old age; and in most cases this means several hundred of your years."

Smith involuntarily rubbed his eyes; and they all laughed, a nervous sort of a laugh which left the visitors still in doubt as to their senses, and their guides' sanity. Van Emmon's suspicions came back with a rush, and he burst out:

"Say—you'll excuse me, but I can't swallow this! Here you've shown us houses as thick as leaves; not a sign of a farm, much less an orchard! No vegetation at all, except for a few flowers!

"Three and a half trillion! All right; let it go at that!" Out came his chin, and he brought one fist down upon the other as though he were cracking rocks with a hammer, and with every blow he uttered a word:

"How—do—you—feed—them—all?"



X

LOAVES AND FISHES

Without a word Myrin drove her machine toward the ground, and, as before, Estra followed despite the lack of any visible signal. Within a minute the two machines had come to rest, softly and without disturbance, on the roof of a handsome building, much like an apartment house. There was the usual transparent elevator, and a minute later the four were being introduced to the occupants of a typical Venusian house.

These two people, apparently man and wife, did not need to be told why the explorers had been brought there. They led the way from the dimly lighted hallway in which the elevator had stopped, into a group of brightly decorated rooms. Here the four were given seats in the usual saddellike chairs, and then Myrin answered Van Emmon's question:

"I knew that this point would arise soon, and you will pardon me if I handle it in a prearranged fashion. I will admit that it is not an easy question Mr. Van Emmon has put; not because the answer is at all complicated but, on the contrary, extremely simple."

The four were listening unanimously. Despite himself, Van Emmon was highly impressed by the Venusian woman's serious manner. Perhaps it was because, in her earnestness, she was not quite so affable as before. She went on:

"From where you are sitting, you can see all the rooms in this house. You will look in vain for anything even remotely resembling a kitchen. There is not even a dining-room.

"And yet you must not jump to the conclusion that we all use restaurants. We have no such thing as a public eating place. Or rather," and here she spoke very carefully, "rather, every place is an eating place."

The doctor looked Myrin over as though she were a patient with a new kind of disease. "You do not mean that literally, of course," said he kindly.

But she nodded gravely. "You must not misunderstand. Remember, even on your own planet, the distribution of food is becoming more and more extensive, until you can now buy something to eat at every crossroads. We have merely carried the idea to its logical end, so that all Venusians can obtain food at any time, and at any spot."

She turned in her chair—all the chairs on Venus were pivoted, Estra said—and touched a button in the wall at her hand. A panel slid noiselessly aside, and revealed a tiny buffet. At least, Billie labeled it a buffet, for want of a more accurate term.

For it consisted of a silver bibb, something like the nozzle of a soda- water fountain above which was a board containing a large number of tiny, numbered push buttons. Below the bibb was a space in which a cup might be set, and projecting from a tube at one side was a solid block of telescoping, transparent cups.

"This," said Myrin, "is the Venusian Nutrition System. There is a station like this in every room on the planet." And she proceeded to take a cup from the tube, filling each from the silver faucet while she pressed a variety of the buttons.

The four watched in silence, and eagerly took what was given to them. It comprised liquids entirely; liquids of every degree of fluidity, from some as thin as water to others as thick as gruel. They varied even more as to color, ranging from actual transparency to a deep chocolate.

"Now, I warn you not to be shocked," said Myrin, "although I fully expect that you will be. The fact is that we have no other kind of food than what you see; there are thousands upon thousands of different kinds and flavors, but they are all fluids. We have nothing whatever in solid form.

"You see," she explained, "we have no teeth."

All they could do was to stare at her as, with a return of her smile, she made a sudden gesture across the front of her mouth. Next instant a set of false teeth lay in her hand!

Estra spoke up. "We are both obliged to wear them in order that we might use your language." He removed his own, to show a mouth as free of teeth as a newborn baby's. Both Venusians replaced their sets, and smiled afresh at the explorers' astonishment.

"Teeth will soon be a thing of the past with you on the Earth, too," commented Myrin. "Dr. Kinney will surely testify to that. Your use of soft, cooked foods, instead of the coarse, hard articles provided by nature, is bound to have this effect in time. With us, it resulted in having teeth reduced to the standing of your appendix; and, like you, we resort to an operation rather than take chances on trouble. I may mention that the appendix is totally absent from all Venusians, while we are beginning to lose all traces of either the first or second molars; just as you are beginning to lose your wisdom teeth.

"However, suppose you try our diet while I explain."

The four once more looked at each other. The doctor was the first to take a sip of one of the cups handed to him, and Van Emmon was the last; the geologist waited to see the effects upon the others before gingerly tasting of the thickest, darkest liquid of them all. Another taste, and he discovered that it was very good, and that he was exceedingly hungry.

"Very delicately flavored," commented Billie, after emptying her fourth glass, a golden fluid with a slightly oily appearance.

"Delicately is right," said the doctor. "This stuff is barely flavored at all, Estra."

The Venusian was also "eating." "We much prefer them all that way," said he. "I suppose you would consider our tastes very finicky, on Earth; but the fact is we are able to distinguish between minute variations in flavoring such as would escape all on earth except a humming-bird."

"I suppose," remarked the doctor, smacking his lips over a reddish solution with a winelike flavor, "I suppose we can expect something of that sort on the Earth, too, in time. Originally mankind was only able to distinguish fresh from stale, and animal from vegetable flavors."

After a while Myrin went on: "You know, the processes of nutrition, as they take place among your people, are extremely wasteful. You have probably heard it said that 'the average human is only fifty per cent efficient.' That simply means that digestion, assimilation and excretion require half the energy which they secure from the food.

"Now, the articles you have just swallowed require very little work on the part of your digestive apparatus, and none at all upon your eliminating tract. The food is almost instantly transformed into fresh blood; if I am not mistaken, you already feel much refreshed."

This was decidedly true. All four felt actually stimulated; Van Emmon instantly suspected the food of being alcoholic. As he continued to watch its effect, however, he saw that there was no harmful reaction as in the case of the notorious drug.

"I think I can now tell you how we produce enough food for the three and a half trillion of us, despite our lack of farms and orchards," said Myrin rising.

Returning to the air-craft, the four were taken a short distance in a new direction, and again descended, this time transferring to an elevator which dropped far below the surface. They came to a stop about ten floors down.

"Naturally," said Myrin, "we reserve all the surface for residence purposes; although, it is possible to live down here in comparative comfort, since we have plenty of electrical energy to spare." And she operated a switch, flooding the place with a brilliant glow. Thrown from concealed sources, this light was quite as strong as the subdued daylight which they had just left. "But unless we were free to fly about as much as we do, we should feel that life was a bore. Nobody stays below any longer than is necessary.

"Now, this is where our food comes from." Whereupon she showed them a series of automatic machines, all working away there in the solid rock of the planet; and of such an extraordinary nature that Smith, the engineer, moved about in an atmosphere of supreme bliss.

"You will understand," said Myrin, "that the usual processes of nutrition, on the Earth, depend entirely upon plant life. We, however, cannot spare room enough for any such system; so we had to devise substitutes for plants.

"In effect, that is what these machines are. They convert bed-rock into loam, take the nitrates and other chemicals [Footnote: The geology of Venus is thoroughly described in Mr. Van Emmon's reports to the A. M. E. A.] directly from this artificial soil, and by a pseudo-osmotic process secure results similar to those produced by roots.

"Likewise we have developed artificial leaves," pointing out a huge apparatus which none but a highly trained expert in both botany and mechanics could half understood. "This machine first manufactures chlorophyl—yes, it does," as the doctor snorted incredulously; "not an imitation, but real chlorophyl—and then transforms the various elements into starch, sugar, and proteids through the agency of the sunlight recovered from the granite.

"In short, to answer your question, Mr. Van Emmon, as to how we are all fed—we do not grow our food at all; we go straight to the practically unlimited supply of raw materials under our feet, and manufacture our food, outright!"



XI

THE SUPER-AMBITION

Billie was very quiet during their return to the surface. She said nothing until they had reached the two cars; and then pausing as she was about to step in, she said:

"Well, I never saw our old friend, the high cost of living, handled quite so easily!

"If that's the way you do things here, Estra," and the girl did not flinch at the gazes the others turned upon her, "if that's your way, it's good enough for me! I'm going to stay!"

For the first time, Estra looked astonished. He and Myrin exchanged lightninglike glances; then the Venusian's face warmed with the smile he gave the architect.

"It is very good of you to say that," he said impressively. "I was afraid some of our—peculiarities—might arouse very different feelings."

They stared at one another for a second or two, long enough for the doctor to notice, and to see how Van Emmon took it. The geologist, however, was smiling upon the girl in a big-brotherly fashion, which indicated that he thought she didn't mean what she had said. Had he been looking up at her, however, instead of down upon her, he would have seen that her chin was most resolute.

Just as they were about to start again, both Estra and Myrin stopped short in their tracks, with that odd hesitation that had mystified the four all along; and after perhaps five seconds of silence turned to one another with grave faces. It was Estra who explained.

"It is curious how things do pile up," said he, a little conscious of having employed an idiom. "Our planet has gone along for hundreds of generations without anything especially remarkable happening, so that recently many prophets have foretold a number of startling events to take place on a single day. And this seems to have come true.

"You have been with us scarcely ten hours," and the visitors stared at each other in amazement that so much time had passed; "scarcely ten hours, and here comes an announcement which, for over a hundred years, has been looked forward to with—"

He stopped abruptly. The doctor gently took him up: "'Looked forward to with'—what, Estra?"

Estra and Myrin considered this for perhaps three seconds. It was the woman who replied: "The fact is, your approach to the planet has stimulated all sorts of research immensely. Matters that had been hanging fire indefinitely were revived; this is one of them. In that sense, you are to blame." But she smiled as reassuringly as she could, allowing for a certain anxiety which had now come to her face.

"Don't you think you could make it clear to us?" asked Billie encouragingly. At the same time all four noted that the air, which before had fairly thronged with machines, was now simply alive with them. People were flitting here and there like swarms of insects, and with as little apparent aim. Both Estra and Myrin were extra watchful; also, they displayed a certain eagerness to get away, setting their course in still another direction. In a minute or two the congestion seemed relieved, and Myrin began to talk slowly:

"You have doubtless guessed, by this time, that we Venusians have crossed what some call 'the animal divide.' We are predominatly intellectual, while you on the earth are, as a race, still predominantly animal. Excuse me for putting it so bluntly."

"It's all right," said the doctor, with an effort. "What you say is true—of most of us." He added: "Most thinking people realize that when our civilization reaches the point where the getting of a living becomes secondary, instead of primary as at present, a great change is bound to come to the race."

The Venusian nodded. "Under the conditions which now surround us, you can see, we have vastly more time for what you would call spiritual matters. Only, we label them psychological experiences.

"In fact, the 'supernatural' is the Venusian's daily business!"

There was another pause, during which both Venusians, driving at high speed though they were, once more closed their eyes for a second or so. Estra evidently thought it time to explain.

"For instance, 'telepathy.' With us it takes the place of wireless; for we have developed the power to such a point that any Venusian can 'call up' any other, no matter where either may be. That is why we need no signs or addresses. There are certain restrictions; for instance, no one can read another's thoughts without his permission. Of course, we still have speech; speech and language are the ABC's of the Venusian; and we still keep the telephone, for the sake of checking up now and then. Just now, we are driving for my own house, where there is apparatus which will enable you to both hear and understand an announcement which is shortly to be made."

There was something decidedly satisfying, especially to Van Emmon, in being taken into the Venusian confidence to this extent. When he put his question, it was with his former aggressiveness much modified. He said:

"I should think that your people have pretty well exhausted the possibilities of the supernatural, by this time. Progress having come to an end, I don't see what you find to interest you, Myrin."

"The fact is," Billie put in, "we feel somewhat disappointed that your people have shown so little interest in us." And she gave a sidelong glance at Estra, who returned the look with a direct, smiling gaze which sent a flood of color into the architect's face.

"Look out!" sharply, from Van Emmon; and with barely an inch to spare, Estra steered his car past another which he had nearly overlooked. For another minute or two there was silence; then Myrin said:

"You wonder what there is to interest us. And yet, every time you look up at the stars, the answer is before your eyes.

"You see, although we cannot read your thoughts without your permission, yet you on the earth cannot prevent us from 'overhearing' anything that may be said. Under proper conditions, our psychic senses are delicate enough to feel the slightest whisper on the earth.

"That is why Estra and I are able to use your language; we have learned it together with an understanding of your lives and customs, by simply 'listening in.' I may add that we are also able to use your eyes; we knew, directly, what you people looked like before you arrived.

"Well, it is our ambition to visit, in spirit, every planet in the universe!

"There are hundreds of millions of stars; every one is a sun; and each has planets. One in a hundred contains life; some very elementary, others much more advanced than we are.

"So far, we have been able to study nearly two thousand worlds besides those in this solar system. Do you still think, friend, we have nothing to interest us?"

She raised a hand in a gesture of emphasis; and it was then that Billie, her eyes on Myrin's fingers, saw another sign of the great advancement these people had made—direct proof, in fact, of what Myrin had just claimed.

For there must have been a tremendous gain in the intellect to have caused such a drain upon the body as Billie saw. In no other way could it be explained; the minds of the Venusians had grown at a fearful cost to flesh and blood.

Not only were the fingernails entirely lacking from Myrin's hand, but the lower joints of her four fingers, from the palm to the knuckles were grown smoothly together.



XII

THE MENTAL LIMIT

"Make yourselves at home," said Estra, as they stepped into his apartment. The cars just filled his balcony. "This is my 'workshop'; see if you can guess my occupation, from what you see. As for Myrin and myself, we must make certain preparations before the announcement is made."

They disappeared, and the four inspected the place. As in the other house they had entered, the room was provided with a double row of small windows; some being down near the floor and the others level with the eyes. These, in addition to two doors, all of which were of translucent material.

On low benches about the room were a number of instruments, some of which looked familiar to the doctor. He said he had seen something much like them in psychology class, during his college days. For the most part, their appearance defied ordinary description. [Footnote: Physicians, biologists, and others interested in matters of this nature will find the above fully treated in Dr. Kinney's reports to the A. M. A.]

But one piece of apparatus was given such prominence that it is worth detailing. It consisted of a hollow, cube-shaped metal framework; about a foot in either direction, upon which was mounted about forty long thumb-screws, all pointing toward the inside of the frame. The inner ends of the screws were provided with small silver pads; while the outer ends were so connected, each with a tiny dial, as to register the amount of motion of the screw. Smith turned one of them in and out, and said it reminded him of a micrometer gage.

Then Billie noted that the entire device was so placed upon the bench as to set directly over a hole, about ten inches in diameter. And under the bench was one of the saddlelike chairs. The architect's antiquarian lore came back to her with a rush, and she remembered something she had seen in a museum—a relic of the inquisition.

"Good Heavens!" she whispered. "What is this—an instrument of torture?"

It certainly looked mightily like one of the head-crushing devices Billie had seen. Thumb-screws and all, this appeared to be only a very elaborate "persuader," for use upon those who must be made to talk.

But the doctor was thinking hard. A big light flashed into his eyes. "This," he declared, positively, "is something that will become a matter of course in our own educational system, as soon as the science of phrenology is better understood." And next second he had ducked under the bench, and thrust his head through the round hole, so that his skull was brought into contact with some of those padded thumb-screws.

"Get the idea?" he finished. "It's a cranium-meter!"

It did not take Smith long to reach the next conclusion. "Then," said he, "our friend Estra is connected with their school system. Can't say what he would be called, but I should say his function is to measure the capacity of students for various kinds of knowledge, in order that their education may be adapted accordingly.

"Might call him a brain-surveyor," he concluded.

"Or a noodle-smith," added the geologist, deprecatingly.

"Rather, a career-appraiser!" indignantly, from Billie. "People look to him to suggest what they should take up, and what they should leave alone. Why, he's one of the most important men on this whole planet!"

And again the doctor was a witness to a clash of eyes between the girl and the geologist. Van Emmon said nothing further, however, but turned to examine an immense book-case on the other side of the room.

This case had shelves scarcely two inches apart, and about half as deep, and held perhaps half a million extremely small books. Each comprised many hundreds of pages, made of a perfectly opaque, bluish-white material of such incredible thinness that ordinary India-paper resembled cardboard by comparison.

They were printed much the same as any other book, except that the characters were of microscopic size, and the lines extremely close together. Also, in some of the books these lines were black and red, alternating.

Billie eagerly examined one of the diminutive volumes under a strong glass, and pronounced the black-printed characters not unlike ancient Gothic type. She guessed that the language was synthetic, like Roman or Esperanto, and that the alphabet numbered sixty or seventy.

"The red lines," she added, not so confidently, "are in a different language. Looks wonderfully like Persian." By this time the others were doing the same as she, and marveling to note that, wherever the red and black lines were employed, invariably the black were in the same language; while the red characters were totally different in each book.

Suddenly Smith gave a start, so vigorously that the other turned in alarm. He was holding one of the books as though it were white hot. "Look!" he stuttered excitedly. "Just look at it!"

And no wonder. In the book he had chanced to pick up, the red lines were printed in ENGLISH.

"Talk about your finds!" exclaimed Billie, in an awe-struck tone. "Why, this library is a literal translation of the languages of—" she fairly gasped as she recalled Myrin's words—"thousands of planets!"

After that she fell silent. Plainly the discovery had profoundly affected and strengthened her notion of remaining on the planet. Van Emmon, watching her narrowly, saw her give the room an appraising glance which meant, plain as day, "I'd like to keep this place in spick and span condition!" And another, not so easy to interpret: "I'd like to show these people a thing or two about designing houses!" And the geologist's heart sank for an instant.

He turned resolutely to the bookcase, and shortly found something which he showed to the doctor. It was a book printed all in "Venusian." They carefully translated the title-page, using one of the interlinear English books as a guide; and saw that it was a complete text-book on astral development.

"With these instructions," the doctor declared, "any one could do as the Venusians do—visit other worlds in spirit!"

Just then Estra and Myrin returned. They were moving at what was, for them, a rapid pace; and to all appearances they were rather excited.

"We were not able to make these records as perfect as we would like," said Estra, holding up four disks similar to the ones which still lay in the explorers' translating machines. He proceeded to open the little black cases and make the exchange. "There will be words used which I did not see fit to incorporate in the original vocabulary, but which you will have to understand perfectly if this announcement is to mean anything to you."

"Thank you," said the doctor quietly. "And now, don't you think we had best know in advance, just what is to be the subject of—"

"Hush!" whispered Estra; and next second they were listening to the telephone in amazement.



XIII

THE WAR OF THE SEXES

"In accordance with my promise," stated a high-pitched effeminate voice, "I am going to demonstrate a juvenation method upon which I have worked for the past one hundred and twenty-two years."

There was a brief pause, during which Estra hurriedly explained that the man who was making the speech was located far on the other side of the planet, in a hall like the one the four had first visited; and that he was making the demonstration before a great gathering of scientists. "Too bad you cannot see as we do," commented the Venusian. "However, Savarona may go into the details of—"

"If the committeemen are entirely finished with their measurements," stated the unseen experimenter, "I would like to have the results compared with the recorded figures of Pario Camenol, who was born on the two hundred and fifteenth day of the year twenty-one thousand seven hundred and four."

Another rest, and Estra said: "They are examining a boy who appears to be about twelve years of age."

Then came other voices: "As we all know, the craniums of us all are absolutely distinct; as much so as our finger-prints." "The measurements correspond identically with those of Pario Camenol, beyond a doubt." "This boy can be none other than Pario."

"Then," the high-pitched voice went on, "then notice the formula I have written on this blackboard. Using this solution, I have supplied nourishment to this lad from the hour of his birth. Until a few days ago, I was not satisfied with the results; the patient showed a tiny variation from the allowable subconscious maximum, together with only nine-tenths the required motor reaction.

"But I have corrected this. Briefly, I have incorporated in Pario Camenol's standard diet certain elements which have hitherto been unsafe to combine. These elements are derivatives of the potash group, for the most part, together with phosphates which need a new classification. Their effect," impressively, "has been to postpone age indefinitely!"

There must have been a tremendous sensation in that hall. The speaker's voice shook with excitement as he went on:

"We have sought in vain, friends, for a way to cheat death of his due. We have succeeded in postponing his advent until our average longevity is several times greater than on our neighboring planet. But so far, it has been a mere reprieve.

"What I have done is to prevent age itself. This lad is a hundred and twenty-two years old, mentally, and still only twelve years old, as to body!

"In short, I offer you the fountain of youth itself!"

The speaker paused. There was no comment. Evidently all had been as greatly impressed as the explorers. Then the voice of the man Savarona finished, very deliberately:

"I regret to say that my treatment, despite all that I have been able to do, cannot be adapted to the female constitution. It would be fatal to any but males. I repeat—I can offer eternal youth, absolutely, but only to new-born males!"

This time there was a definite response. From the telephone came a confused murmuring, at which Van Emmon's face lighted up with delight. The murmuring had an angry sound!

"This is outrageous!" a loud contralto voice was raised above the rest. "You are unethical, Savarona, to announce such a thing before adapting it to both sexes!"

The high-pitched voice replied shortly, and with more than a hint of malice: "If a woman had discovered this, instead of me, I dare say you would have no objections!"

The murmuring grew louder, angrier, more confused. The four from the earth looked at each other in some slight uneasiness. At the same time they noted that Estra, his eyes tightly closed and his fists clenched in the intensity of his concentration, suddenly gave a sigh of relief. Next second he began to speak into the telephone, in a voice so loud as to silence all the clamor.

"Savarona, and the people of Venus! Listen!

"The prophets were right when they said today would witness many great things! I have just learned of another experiment which transcends even that of Savarona!"

An instant's pause; then: "First let me remind you that we have been doing all we could to elevate our spiritual selves. We are daily trying to eliminate all that is animal, all that is gross and bemeaning in us, even to the extent of reducing the flavors of our foods to the lowest tolerable point. And despite all this, we have not been able to get rid of sex jealousy!

"We still have the beast within us! No matter how pure our love may be, it is always tainted with rivalry! Always the husband and wife are held down by this mutual envy, forever dragging at their heels, constantly holding them back from the lofty heights of spiritual power to which they aspire!"

He paused, and Savarona's voice broke in, triumphantly: "You are right, Estra! You are right, except you did not mention that this jealousy becomes less and less as one grows older!

"Now, my discovery will put an end to your beast, Estra! My experiments took this lad before he had become a man, and allowed his brain to develop, while his body stopped growing! He is a man in mentality, and an innocent boy in body!

"Estra, I have done the thing you wish! This boy will never know jealousy, because he will never know love!"

The man in the room with the four answered in a flash: "So you have, Savarona, but only for MEN! No female can benefit by what you have done!"

"But I tell you that, within the past few minutes, a child has been born under circumstances which can be repeated at any time, and for any sex!"

"In this case," the Venusian's voice changed curiously; "in this case, however, it was a girl; for the mother controlled the sex in the customary manner." At this, the doctor's interest became acute. At the same time, the other three felt a tremendous, inexplicable thrill.

"Friends"—and Extra's face shone in his enthusiasm—"friends, for the first time in creation the human male germ has been dispensed with! The intellect has done what the laboratory could not do!

"I have the honor to announce that my sister, Amra, has just given birth"—his voice fairly rang—"has just given birth to a girl baby, whose only father was her mother's brain!"



XIV

ESTRA

This time there was no drowning the confusion. The telephone fairly shook with innumerable cries, shouts, imprecations. The four gave up trying to hear, and watched the two Venusians.

Myrin was facing Estra now. Her expression had lost a great deal of its good humor, and there was a certain sharpness in her voice as she exclaimed:

"Estra—if your sister has done this, and I see no reason to doubt it, then she has made man superfluous! If women can produce children mechanically, and govern the sex at will, the coming race need be nothing but females!"

Estra nodded gravely. "That is what it amounts to, Myrin!"

For a moment the two stared at one another challengingly. On the earth, their attitude would have indicated some unimportant tiff. None would have dreamed that the most momentous question in their lives had come up, and had found them at outs.

Next instant Myrin turned, and without another word walked from the room. Estra followed slowly to the door, where he stood looking after her with an expression of the keenest concern on his sensitive, high- strung features. The three men from the earth, after a glance, studiously avoided looking at him; but Billie walked up and laid a hand on his arm.

"Are you really in favor of this—scheme?" she inquired, in a curiously tender voice. At the same time she gazed intently into Estra's eyes.

He turned, and the smile came back to his face. He took Billie's hand and laid it between both his own. His voice was even gentler than before.

"Most certainly I do favor my sister's method, Billie. It will be the greatest boon the race has ever known. We can look forward, now"—and his face shone again—"can look forward to generation upon generation of people whose spirituality will be absolute!"

The girl moved closer to him. She spoke with feverish earnestness.

"There may be some hitch in the idea, Estra. If God meant for man to become—to become obsolete, He would not have hidden the method all this time. Suppose some flaw should develop—later on?"

In the cube, Billie Jackson would not have stumbled over such a speech. She would have ignored the fact that Estra was holding her hand all this time, and gazing deep into her eyes; she would have been filled with what she was saying and not with what she was seeing. On the other side of the room, Van Emmon watched and glowered; he could not hear.

The Venusian lifted his head suddenly. The voices from the telephone had subsided; only an occasional outburst came from the instrument. Estra closed his eyes again for a second, and when he opened them again, his manner was astonishingly alert, and his speech swift and to the point.

"So far as we know, Billie, the method has no flaws. It gives us the chance to throw off our lower selves; and if by so doing, we reduce the race to a single sex, only—"

He stopped short, as though at a sound; and with a word of apology stepped from the room. He opened another door, far down the corridor; and as he passed through, the wail of a new-born infant came faintly to the four.

"Wonder what's up?" said Smith. Van Emmon, who had gone to the window, whirled upon the engineer and motioned him to his side.

"Look at the people!"

Smith saw that the nearby houses were almost concealed by a throng which had gathered, silently and without confusion, during the past few minutes. Their numbers were increasing swiftly, fresh arrivals packing the background. People filled the streets; the space below Estra's balcony was already crowded as closely as it could be. Except for a low- voiced buzzing, there was no disturbance.

Billie came up. She seemed to divine the temper of the mob. She caught her breath sharply, and then said, very simply:

"It reminds me of—Bethlehem."

But the words had scarcely left her mouth before an uproar sounded from one end of the street below. A crowd of excited Venusians was pushing its way determinedly toward the house, their passage obstructed by shouting, protesting individuals. Van Emmon's breast began to heave; he fancied he saw blows struck.

"By George!" he exclaimed, next second. "They're fighting!"

It was true; a hand-to-hand battle was going on less than a block away. The people below the window surged in the direction of the fight; all were shouting, now; the clamor was deafening.

"Live and let live!" came one of the shouts. It was taken up by the group that was doing the attacking, and made into a cheer. Then came other cries from them. Smith made out something like "Down with sex monopoly!"

"Don't you see?" shouted Smith, above the din. "These people below are Estra's friends; those newcomers are backing Savarona! Get the idea?" he repeated. "If Estra wins out, the old boy with the fountain of youth will never get another boy baby to experiment on!"

"What!" The doctor leaped to their sides. He took it in at a glance; then whirled to the door. "We ought to warn Estra!"

"He knows it already!" reminded Billie swiftly. A great shout came from below; the attackers had forced their way through the crowd of Estra's friends.

"Well!" Van Emmon stood squarely in the middle of the room. "So far as I'm concerned, Estra and his sister can face that crowd alone! I don't approve of the scheme!"

The doctor eyed him thoughtfully. "I'm not so sure, Van. This is a tremendous thing; we ought to—"

"Van is—right!" exploded Billie. Her voice rose to a shriek as a crash shook the house.

Next instant Myrin, for once in a hurry, broke into the room. She glanced about, missed Estra, looked slightly puzzled, and then frowned angrily as the Venusian himself stepped in: "You fooled me!" she shot at him. But he smiled apologetically. He was carrying a large package of leaflets, closely printed in Venusian; there seemed to be several thousand in the lot. He said, by way of explanation:

"I had to get ready. Savarona's people will be here any moment; they have destroyed the elevator, and—"

A wave of clamor burst from below. "They've broken the barrier," remarked Estra calmly; he turned to the door, then whirled at a crash which sounded from above. "Through the roof," he added. He did not even glance at the balcony, where the two cars barred the way against any attack from that direction.

Next second he again quit the room. Myrin hesitated a moment, irresolute, and then followed him thoughtfully. They never saw her again. As for Estra, he came back in a moment carrying a small, white bundle, which stirred in his arms. He unhesitatingly handed the child to Billie. His mouth moved soundlessly as a muffled shriek arose from the other end of the corridor; there was a thud, a metallic crash, and a great roar of voices. The mob had broken in, and up, through the back of the house. The first of the attackers thrust his head and shoulders into sight not ten feet away.

Estra touched something with his foot, and a door shot across the corridor. There was an instant's silence; then, the thunder of the mob, hurling itself against the door. The people were fairly snarling now. Estra closed the inner door.

"Estra!" shrilly, from Billie. She laid the baby down, and strode to the Venusian. "Let's get out of here! The car's on the balcony; nobody's in the way to interfere! Why not—"

A grinding, ripping jar from above, and Estra shook his head. The smile was gone, and his mouth was set and grim. "They'd catch us before we went a mile," he said, glancing at the infant, who had begun to cry, in a stifled, gasping way that tore at the nerves.

"Estra!" Billie pleaded; but he turned away. The doctor strode up to him and gripped his shoulder.

"What's the good, Estra? What can you accomplish even if you—"

The Venusian tapped his forehead. "I can TELL!" he exclaimed, with a return of that exalted flush. "Just give me a chance to offer my sister's discovery to the world, and I shall be satisfied!" He touched the package of leaflets. "These are not written as clearly as they should be; but if I cannot hold them back, then these"—fingering the papers—"these go to the friends down below!" He moved closer to the window, but his eyes were on the door.