By the return of the expedition, conveying its contribution from Formentera, the known population of Gallia was raised to a total of thirty-six.
On learning the details of his friends’ discoveries, Count Timascheff did not hesitate in believing that the exhausted individual who was lying before him was the author alike of the two unsigned documents picked up at sea, and of the third statement so recently brought to hand by the carrier-pigeon. Manifestly, he had arrived at some knowledge of Gallia’s movements: he had estimated her distance from the sun; he had calculated the diminution of her tangential speed; but there was nothing to show that he had arrived at the conclusions which were of the most paramount interest to them all. Had he ascertained the true character of her orbit? had he established any data from which it would be possible to reckon what time must elapse before she would again approach the earth?
The only intelligible words which the astronomer had uttered had been, “My comet!”
To what could the exclamation refer? Was it to be conjectured that a fragment of the earth had been chipped off by the collision of a comet? and if so, was it implied that the name of the comet itself was Gallia, and were they mistaken in supposing that such was the name given by thesavantto the little world that had been so suddenly launched into space? Again and again they discussed these questions; but no satisfactory answer could be found. The only man who was able to throw any light upon the subject was lying amongst them in an unconscious and half-dying condition.
Apart from motives of humanity, motives of self-interest made it a matter of the deepest concern to restore animation to that senseless form. Ben Zoof, after making the encouraging remark thatsavantshave as many lives as a cat, proceeded, with Negrete’s assistance, to give the body such a vigorous rubbing as would have threatened serious injury to any ordinary mortal, whilst they administered cordials and restoratives from theDobryna’smedical stores powerful enough, one might think, to rouse the very dead.
Meanwhile the captain was racking his brain in his exertions to recall what were the circumstances of his previous acquaintance with the Frenchman upon whose features he was gazing; he only grew more and more convinced that he had once been familiar with them. Perhaps it was not altogether surprising that he had almost forgotten him; he had never seen him since the days of his youth, that time of life which, with a certain show of justice, has been termed the age of ingratitude; for, in point of fact, the astronomer was none other than Professor Palmyrin Rosette, Servadac’s old science-master at the Lycee Charlemagne.
After completing his year of elementary studies, Hector Servadac had entered the school at Saint Cyr, and from that time he and his former tutor had never met, so that naturally they would well-nigh pass from each other’s recollection. One thing, however, on the other hand, might conduce to a mutual and permanent impression on their memories; during the year at the Lycee, young Servadac, never of a very studious turn of mind, had contrived, as the ringleader of a set of like caliber as himself, to lead the poor professor a life of perpetual torment. On the discovery of each delinquency he would fume and rage in a manner that was a source of unbounded delight to his audience.
Two years after Servadac left the Lycee, Professor Rosette had thrown up all educational employment in order that he might devote himself entirely to the study of astronomy. He endeavored to obtain a post at the Observatory, but his ungenial character was so well known in scientific circles that he failed in his application; however, having some small private means, he determined on his own account to carry on his researches without any official salary. He had really considerable genius for the science that he had adopted; besides discovering three of the latest of the telescopic planets, he had worked out the elements of the three hundred and twenty-fifth comet in the catalogue; but his chief delight was to criticize the publications of other astronomers, and he was never better pleased than when he detected a flaw in their reckonings.
When Ben Zoof and Negrete had extricated their patient from the envelope of furs in which he had been wrapped by Servadac and the lieutenant, they found themselves face to face with a shrivelled little man, about five feet two inches high, with a round bald head, smooth and shiny as an ostrich’s egg, no beard unless the unshorn growth of a week could be so described, and a long hooked nose that supported a huge pair of spectacles such as with many near-sighted people seems to have become a part of their individuality. His nervous system was remarkably developed, and his body might not inaptly be compared to one of the Rhumkorff’s bobbins of which the thread, several hundred yards in length, is permeated throughout by electric fluid. But whatever he was, his life, if possible, must be preserved. When he had been partially divested of his clothing, his heart was found to be still beating, though very feebly. Asserting that while there was life there was hope, Ben Zoof recommenced his friction with more vigor than ever.
When the rubbing had been continued without a moment’s intermission for the best part of half an hour, the astronomer heaved a faint sigh, which ere long was followed by another and another. He half opened his eyes, closed them again, then opened them completely, but without exhibiting any consciousness whatever of his situation. A few words seemed to escape his lips, but they were quite unintelligible. Presently he raised his right hand to his forehead as though instinctively feeling for something that was missing; then, all of a sudden, his features became contracted, his face flushed with apparent irritation, and he exclaimed fretfully, “My spectacles!—where are my spectacles?”
In order to facilitate his operations, Ben Zoof had removed the spectacles in spite of the tenacity with which they seemed to adhere to the temples of his patient; but he now rapidly brought them back and readjusted them as best he could to what seemed to be their natural position on the aquiline nose. The professor heaved a long sigh of relief, and once more closed his eyes.
Before long the astronomer roused himself a little more, and glanced inquiringly about him, but soon relapsed into his comatose condition. When next he opened his eyes, Captain Servadac happened to be bending down closely over him, examining his features with curious scrutiny. The old man darted an angry look at him through the spectacles, and said sharply, “Servadac, five hundred lines to-morrow!”
It was an echo of days of old. The words were few, but they were enough to recall the identity which Servadac was trying to make out.
“Is it possible?” he exclaimed. “Here is my old tutor, Mr. Rosette, in very flesh and blood.”
“Can’t say much for the flesh,” muttered Ben Zoof.
The old man had again fallen back into a torpid slumber. Ben Zoof continued, “His sleep is getting more composed. Let him alone; he will come round yet. Haven’t I heard of men more dried up than he is, being brought all the way from Egypt in cases covered with pictures?”
“You idiot!—those were mummies; they had been dead for ages.”
Ben Zoof did not answer a word. He went on preparing a warm bed, into which he managed to remove his patient, who soon fell into a calm and natural sleep.
Too impatient to await the awakening of the astronomer and to hear what representations he had to make, Servadac, the count, and the lieutenant, constituting themselves what might be designated “the Academy of Sciences” of the colony, spent the whole of the remainder of the day in starting and discussing the wildest conjectures about their situation. The hypothesis, to which they had now accustomed themselves for so long, that a new asteroid had been formed by a fracture of the earth’s surface, seemed to fall to the ground when they found that Professor Palmyrin Rosette had associated the name of Gallia, not with their present home, but with what he called “my comet”; and that theory being abandoned, they were driven to make the most improbable speculations to replace it.
Alluding to Rosette, Servadac took care to inform his companions that, although the professor was always eccentric, and at times very irascible, yet he was really exceedingly good-hearted; his bark was worse than his bite; and if suffered to take their course without observation, his outbreaks of ill-temper seldom lasted long.
“We will certainly do our best to get on with him,” said the count. “He is no doubt the author of the papers, and we must hope that he will be able to give us some valuable information.”
“Beyond a question the documents have originated with him,” assented the lieutenant. “Gallia was the word written at the top of every one of them, and Gallia was the first word uttered by him in our hearing.”
The astronomer slept on. Meanwhile, the three together had no hesitation in examining his papers, and scrutinizing the figures on his extemporized blackboard. The handwriting corresponded with that of the papers already received; the blackboard was covered with algebraical symbols traced in chalk, which they were careful not to obliterate; and the papers, which consisted for the most part of detached scraps, presented a perfect wilderness of geometrical figures, conic sections of every variety being repeated in countless profusion.
Lieutenant Procope pointed out that these curves evidently had reference to the orbits of comets, which are variously parabolic, hyperbolic, or elliptic. If either of the first two, the comet, after once appearing within the range of terrestrial vision, would vanish forever in the outlying regions of space; if the last, it would be sure, sooner or later, after some periodic interval, to return.
From theprima facieappearance of his papers, then, it seemed probable that the astronomer, during his sojourn at Formentera, had been devoting himself to the study of cometary orbits; and as calculations of this kind are ordinarily based upon the assumption that the orbit is a parabola, it was not unlikely that he had been endeavoring to trace the path of some particular comet.
“I wonder whether these calculations were made before or after the 1st of January; it makes all the difference,” said Lieutenant Procope.
“We must bide our time and hear,” replied the count.
Servadac paced restlessly up and down. “I would give a month of my life,” he cried, impetuously, “for every hour that the old fellow goes sleeping on.”
“You might be making a bad bargain,” said Procope, smiling. “Perhaps after all the comet has had nothing to do with the convulsion that we have experienced.”
“Nonsense!” exclaimed the captain; “I know better than that, and so do you. Is it not as clear as daylight that the earth and this comet have been in collision, and the result has been that our little world has been split off and sent flying far into space?”
Count Timascheff and the lieutenant looked at each other in silence. “I do not deny your theory,” said Procope after a while. “If it be correct, I suppose we must conclude that the enormous disc we observed on the night of the catastrophe was the comet itself; and the velocity with which it was traveling must have been so great that it was hardly arrested at all by the attraction of the earth.”
“Plausible enough,” answered Count Timascheff; “and it is to this comet that our scientific friend here has given the name of Gallia.”
It still remained a puzzle to them all why the astronomer should apparently be interested in the comet so much more than in the new little world in which their strange lot was cast.
“Can you explain this?” asked the count.
“There is no accounting for the freaks of philosophers, you know,” said Servadac; “and have I not told you that this philosopher in particular is one of the most eccentric beings in creation?”
“Besides,” added the lieutenant, “it is exceedingly likely that his observations had been going on for some considerable period before the convulsion happened.”
Thus, the general conclusion arrived at by the Gallian Academy of Science was this: That on the night of the 31st of December, a comet, crossing the ecliptic, had come into collision with the earth, and that the violence of the shock had separated a huge fragment from the globe, which fragment from that date had been traversing the remote inter-planetary regions. Palmyrin Rosette would doubtless confirm their solution of the phenomenon.
To the general population of the colony the arrival of the stranger was a matter of small interest. The Spaniards were naturally too indolent to be affected in any way by an incident that concerned themselves so remotely; while the Russians felt themselves simply reliant on their master, and as long as they were with him were careless as to where or how they spent their days. Everything went on with them in an accustomed routine; and they lay down night after night, and awoke to their avocations morning after morning, just as if nothing extraordinary had occurred.
All night long Ben Zoof would not leave the professor’s bedside. He had constituted himself sick nurse, and considered his reputation at stake if he failed to set his patient on his feet again. He watched every movement, listened to every breath, and never failed to administer the strongest cordials upon the slightest pretext. Even in his sleep Rosette’s irritable nature revealed itself. Ever and again, sometimes in a tone of uneasiness, and sometimes with the expression of positive anger, the name of Gallia escaped his lips, as though he were dreaming that his claim to the discovery of the comet was being contested or denied; but although his attendant was on the alert to gather all he could, he was able to catch nothing in the incoherent sentences that served to throw any real light upon the problem that they were all eager to solve.
When the sun reappeared on the western horizon the professor was still sound asleep; and Ben Zoof, who was especially anxious that the repose which promised to be so beneficial should not be disturbed, felt considerable annoyance at hearing a loud knocking, evidently of some blunt heavy instrument against a door that had been placed at the entrance of the gallery, more for the purpose of retaining internal warmth than for guarding against intrusion from without.
“Confound it!” said Ben Zoof. “I must put a stop to this;” and he made his way towards the door.
“Who’s there?” he cried, in no very amiable tone.
“I.” replied the quavering voice.
“Who are you?”
“Isaac Hakkabut. Let me in; do, please, let me in.”
“Oh, it is you, old Ashtaroth, is it? What do you want? Can’t you get anybody to buy your stuffs?”
“Nobody will pay me a proper price.”
“Well, old Shimei, you won’t find a customer here. You had better be off.”
“No; but do, please—do, please, let me in,” supplicated the Jew. “I want to speak to his Excellency, the governor.”
“The governor is in bed, and asleep.”
“I can wait until he awakes.”
“Then wait where you are.”
And with this inhospitable rejoinder the orderly was about to return to his place at the side of his patient, when Servadac, who had been roused by the sound of voices, called out, “What’s the matter, Ben Zoof?”
“Oh, nothing, sir; only that hound of a Hakkabut says he wants to speak to you.”
“Let him in, then.”
Ben Zoof hesitated.
“Let him in, I say,” repeated the captain, peremptorily.
However reluctantly, Ben Zoof obeyed. The door was unfastened, and Isaac Hakkabut, enveloped in an old overcoat, shuffled into the gallery. In a few moments Servadac approached, and the Jew began to overwhelm him with the most obsequious epithets. Without vouchsafing any reply, the captain beckoned to the old man to follow him, and leading the way to the central hall, stopped, and turning so as to look him steadily in the face, said, “Now is your opportunity. Tell me what you want.”
“Oh, my lord, my lord,” whined Isaac, “you must have some news to tell me.”
“News? What do you mean?”
“From my little tartan yonder, I saw the yawl go out from the rock here on a journey, and I saw it come back, and it brought a stranger; and I thought—I thought—I thought—”
“Well, you thought—what did you think?”
“Why, that perhaps the stranger had come from the northern shores of the Mediterranean, and that I might ask him—”
He paused again, and gave a glance at the captain.
“Ask him what? Speak out, man?”
“Ask him if he brings any tidings of Europe,” Hakkabut blurted out at last.
Servadac shrugged his shoulders in contempt and turned away. Here was a man who had been resident three months in Gallia, a living witness of all the abnormal phenomena that had occurred, and yet refusing to believe that his hope of making good bargains with European traders was at an end. Surely nothing, thought the captain, will convince the old rascal now; and he moved off in disgust. The orderly, however, who had listened with much amusement, was by no means disinclined for the conversation to be continued. “Are you satisfied, old Ezekiel?” he asked.
“Isn’t it so? Am I not right? Didn’t a stranger arrive here last night?” inquired the Jew.
“Yes, quite true.”
“Where from?”
“From the Balearic Isles.”
“The Balearic Isles?” echoed Isaac.
“Yes.”
“Fine quarters for trade! Hardly twenty leagues from Spain! He must have brought news from Europe!”
“Well, old Manasseh, what if he has?”
“I should like to see him.”
“Can’t be.”
The Jew sidled close up to Ben Zoof, and laying his hand on his arm, said in a low and insinuating tone, “I am poor, you know; but I would give you a few reals if you would let me talk to this stranger.”
But as if he thought he was making too liberal an offer, he added, “Only it must be at once.”
“He is too tired; he is worn out; he is fast asleep,” answered Ben Zoof.
“But I would pay you to wake him.”
The captain had overheard the tenor of the conversation, and interposed sternly, “Hakkabut! if you make the least attempt to disturb our visitor, I shall have you turned outside that door immediately.”
“No offense, my lord, I hope,” stammered out the Jew. “I only meant—”
“Silence!” shouted Servadac. The old man hung his head, abashed.
“I will tell you what,” said Servadac after a brief interval; “I will give you leave to hear what this stranger has to tell as soon as he is able to tell us anything; at present we have not heard a word from his lips.”
The Jew looked perplexed.
“Yes,” said Servadac; “when we hear his story, you shall hear it too.”
“And I hope it will be to your liking, old Ezekiel!” added Ben Zoof in a voice of irony.
They had none of them long to wait, for within a few minutes Rosette’s peevish voice was heard calling, “Joseph! Joseph!”
The professor did not open his eyes, and appeared to be slumbering on, but very shortly afterwards called out again, “Joseph! Confound the fellow! where is he?” It was evident that he was half dreaming about a former servant now far away on the ancient globe. “Where’s my blackboard, Joseph?”
“Quite safe, sir,” answered Ben Zoof, quickly.
Rosette unclosed his eyes and fixed them full upon the orderly’s face. “Are you Joseph?” he asked.
“At your service, sir,” replied Ben Zoof with imperturbable gravity.
“Then get me my coffee, and be quick about it.”
Ben Zoof left to go into the kitchen, and Servadac approached the professor in order to assist him in rising to a sitting posture.
“Do you recognize your quondam pupil, professor?” he asked.
“Ah, yes, yes; you are Servadac,” replied Rosette. “It is twelve years or more since I saw you; I hope you have improved.”
“Quite a reformed character, sir, I assure you,” said Servadac, smiling.
“Well, that’s as it should be; that’s right,” said the astronomer with fussy importance. “But let me have my coffee,” he added impatiently; “I cannot collect my thoughts without my coffee.”
Fortunately, Ben Zoof appeared with a great cup, hot and strong. After draining it with much apparent relish, the professor got out of bed, walked into the common hall, round which he glanced with a pre-occupied air, and proceeded to seat himself in an armchair, the most comfortable which the cabin of theDobrynahad supplied. Then, in a voice full of satisfaction, and that involuntarily recalled the exclamations of delight that had wound up the two first of the mysterious documents that had been received, he burst out, “Well, gentlemen, what do you think of Gallia?”
There was no time for anyone to make a reply before Isaac Hakkabut had darted forward.
“By the God—”
“Who is that?” asked the startled professor; and he frowned, and made a gesture of repugnance.
Regardless of the efforts that were made to silence him, the Jew continued, “By the God of Abraham, I beseech you, give me some tidings of Europe!”
“Europe?” shouted the professor, springing from his seat as if he were electrified; “what does the man want with Europe?”
“I want to get there!” screeched the Jew; and in spite of every exertion to get him away, he clung most tenaciously to the professor’s chair, and again and again implored for news of Europe.
Rosette made no immediate reply. After a moment or two’s reflection, he turned to Servadac and asked him whether it was not the middle of April.
“It is the twentieth,” answered the captain.
“Then to-day,” said the astronomer, speaking with the greatest deliberation—“to-day we are just three millions of leagues away from Europe.”
The Jew was utterly crestfallen.
“You seem here,” continued the professor, “to be very ignorant of the state of things.”
“How far we are ignorant,” rejoined Servadac, “I cannot tell. But I will tell you all that we do know, and all that we have surmised.” And as briefly as he could, he related all that had happened since the memorable night of the thirty-first of December; how they had experienced the shock; how theDobrynahad made her voyage; how they had discovered nothing except the fragments of the old continent at Tunis, Sardinia, Gibraltar, and now at Formentera; how at intervals the three anonymous documents had been received; and, finally, how the settlement at Gourbi Island had been abandoned for their present quarters at Nina’s Hive.
The astronomer had hardly patience to hear him to the end. “And what do you say is your surmise as to your present position?” he asked.
“Our supposition,” the captain replied, “is this. We imagine that we are on a considerable fragment of the terrestrial globe that has been detached by collision with a planet to which you appear to have given the name of Gallia.”
“Better than that!” cried Rosette, starting to his feet with excitement.
“How? Why? What do you mean?” cried the voices of the listeners.
“You are correct to a certain degree,” continued the professor. “It is quite true that at 47’ 35.6” after two o’clock on the morning of the first of January there was a collision; my comet grazed the earth; and the bits of the earth which you have named were carried clean away.”
They were all fairly bewildered.
“Where, then,” cried Servadac eagerly, “where are we?”
“You are on my comet, on Gallia itself!”
And the professor gazed around him with a perfect air of triumph.
“Yes, my comet!” repeated the professor, and from time to time he knitted his brows, and looked around him with a defiant air, as though he could not get rid of the impression that someone was laying an unwarranted claim to its proprietorship, or that the individuals before him were intruders upon his own proper domain.
But for a considerable while, Servadac, the count, and the lieutenant remained silent and sunk in thought. Here then, at last, was the unriddling of the enigma they had been so long endeavoring to solve; both the hypotheses they had formed in succession had now to give way before the announcement of the real truth. The first supposition, that the rotatory axis of the earth had been subject to some accidental modification, and the conjecture that replaced it, namely, that a certain portion of the terrestrial sphere had been splintered off and carried into space, had both now to yield to the representation that the earth had been grazed by an unknown comet, which had caught up some scattered fragments from its surface, and was bearing them far away into sidereal regions. Unfolded lay the past and the present before them; but this only served to awaken a keener interest about the future. Could the professor throw any light upon that? they longed to inquire, but did not yet venture to ask him.
Meanwhile Rosette assumed a pompous professional air, and appeared to be waiting for the entire party to be ceremoniously introduced to him. Nothing unwilling to humor the vanity of the eccentric little man, Servadac proceeded to go through the expected formalities.
“Allow me to present to you my excellent friend, the Count Timascheff,” he said.
“You are very welcome,” said Rosette, bowing to the count with a smile of condescension.
“Although I am not precisely a voluntary resident on your comet, Mr. Professor, I beg to acknowledge your courteous reception,” gravely responded Timascheff.
Servadac could not quite conceal his amusement at the count’s irony, but continued, “This is Lieutenant Procope, the officer in command of theDobryna.”
The professor bowed again in frigid dignity.
“His yacht has conveyed us right round Gallia,” added the captain.
“Round Gallia?” eagerly exclaimed the professor.
“Yes, entirely round it,” answered Servadac, and without allowing time for reply, proceeded, “And this is my orderly, Ben Zoof.”
“Aide-de-camp to his Excellency the Governor of Gallia,” interposed Ben Zoof himself, anxious to maintain his master’s honor as well as his own.
Rosette scarcely bent his head.
The rest of the population of the Hive were all presented in succession: the Russian sailors, the Spaniards, young Pablo, and little Nina, on whom the professor, evidently no lover of children, glared fiercely through his formidable spectacles. Isaac Hakkabut, after his introduction, begged to be allowed to ask one question.
“How soon may we hope to get back?” he inquired.
“Get back!” rejoined Rosette, sharply; “who talks of getting back? We have hardly started yet.”
Seeing that the professor was inclined to get angry, Captain Servadac adroitly gave a new turn to the conversation by asking him whether he would gratify them by relating his own recent experiences. The astronomer seemed pleased with the proposal, and at once commenced a verbose and somewhat circumlocutory address, of which the following summary presents the main features.
The French Government, being desirous of verifying the measurement already made of the arc of the meridian of Paris, appointed a scientific commission for that purpose. From that commission the name of Palmyrin Rosette was omitted, apparently for no other reason than his personal unpopularity. Furious at the slight, the professor resolved to set to work independently on his own account, and declaring that there were inaccuracies in the previous geodesic operations, he determined to re-examine the results of the last triangulation which had united Formentera to the Spanish coast by a triangle, one of the sides of which measured over a hundred miles, the very operation which had already been so successfully accomplished by Arago and Biot.
Accordingly, leaving Paris for the Balearic Isles, he placed his observatory on the highest point of Formentera, and accompanied as he was only by his servant, Joseph, led the life of a recluse. He secured the services of a former assistant, and dispatched him to a high peak on the coast of Spain, where he had to superintend a reverberator, which, with the aid of a glass, could be seen from Formentera. A few books and instruments, and two months’ victuals, was all the baggage he took with him, except an excellent astronomical telescope, which was, indeed, almost part and parcel of himself, and with which he assiduously scanned the heavens, in the sanguine anticipation of making some discovery which would immortalize his name.
The task he had undertaken demanded the utmost patience. Night after night, in order to fix the apex of his triangle, he had to linger on the watch for the assistant’s signal-light, but he did not forget that his predecessors, Arago and Biot, had had to wait sixty-one days for a similar purpose. What retarded the work was the dense fog which, it has been already mentioned, at that time enveloped not only that part of Europe, but almost the entire world.
Never failing to turn to the best advantage the few intervals when the mist lifted a little, the astronomer would at the same time cast an inquiring glance at the firmament, as he was greatly interested in the revision of the chart of the heavens, in the region contiguous to the constellation Gemini.
To the naked eye this constellation consists of only six stars, but through a telescope ten inches in diameter, as many as six thousand are visible. Rosette, however, did not possess a reflector of this magnitude, and was obliged to content himself with the good but comparatively small instrument he had.
On one of these occasions, whilst carefully gauging the recesses of Gemini, he espied a bright speck which was unregistered in the chart, and which at first he took for a small star that had escaped being entered in the catalogue. But the observation of a few separate nights soon made it manifest that the star was rapidly changing its position with regard to the adjacent stars, and the astronomer’s heart began to leap at the thought that the renown of the discovery of a new planet would be associated with his name.
Redoubling his attention, he soon satisfied himself that what he saw was not a planet; the rapidity of its displacement rather forced him to the conjecture that it must be a comet, and this opinion was soon strengthened by the appearance of a coma, and subsequently confirmed, as the body approached the sun, by the development of a tail.
A comet! The discovery was fatal to all further progress in the triangulation. However conscientiously the assistant on the Spanish coast might look to the kindling of the beacon, Rosette had no glances to spare for that direction; he had no eyes except for the one object of his notice, no thoughts apart from that one quarter of the firmament.
A comet! No time must be lost in calculating its elements.
Now, in order to calculate the elements of a comet, it is always deemed the safest mode of procedure to assume the orbit to be a parabola. Ordinarily, comets are conspicuous at their perihelia, as being their shortest distances from the sun, which is the focus of their orbit, and inasmuch as a parabola is but an ellipse with its axis indefinitely produced, for some short portion of its pathway the orbit may be indifferently considered either one or the other; but in this particular case the professor was right in adopting the supposition of its being parabolic.
Just as in a circle, it is necessary to know three points to determine the circumference; so in ascertaining the elements of a comet, three different positions must be observed before what astronomers call its “ephemeris” can be established.
But Professor Rosette did not content himself with three positions; taking advantage of every rift in the fog he made ten, twenty, thirty observations both in right ascension and in declination, and succeeded in working out with the most minute accuracy the five elements of the comet which was evidently advancing with astounding rapidity towards the earth.
These elements were:
1. The inclination of the plane of the cometary orbit to the plane of the ecliptic, an angle which is generally considerable, but in this case the planes were proved to coincide.
2. The position of the ascending node, or the point where the comet crossed the terrestrial orbit.
These two elements being obtained, the position in space of the comet’s orbit was determined.
3. The direction of the axis major of the orbit, which was found by calculating the longitude of the comet’s perihelion.
4. The perihelion distance from the sun, which settled the precise form of the parabola.
5. The motion of the comet, as being retrograde, or, unlike the planets, from east to west.
Rosette thus found himself able to calculate the date at which the comet would reach its perihelion, and, overjoyed at his discovery, without thinking of calling it Palmyra or Rosette, after his own name, he resolved that it should be known as Gallia.
His next business was to draw up a formal report. Not only did he at once recognize that a collision with the earth was possible, but he soon foresaw that it was inevitable, and that it must happen on the night of the 31st of December; moreover, as the bodies were moving in opposite directions, the shock could hardly fail to be violent.
To say that he was elated at the prospect was far below the truth; his delight amounted almost to delirium. Anyone else would have hurried from the solitude of Formentera in sheer fright; but, without communicating a word of his startling discovery, he remained resolutely at his post. From occasional newspapers which he had received, he had learnt that fogs, dense as ever, continued to envelop both hemispheres, so that he was assured that the existence of the comet was utterly unknown elsewhere; and the ignorance of the world as to the peril that threatened it averted the panic that would have followed the publication of the facts, and left the philosopher of Formentera in sole possession of the great secret. He clung to his post with the greater persistency, because his calculations had led him to the conclusion that the comet would strike the earth somewhere to the south of Algeria, and as it had a solid nucleus, he felt sure that, as he expressed it, the effect would be “unique,” and he was anxious to be in the vicinity.
The shock came, and with it the results already recorded. Palmyrin Rosette was suddenly separated from his servant Joseph, and when, after a long period of unconsciousness, he came to himself, he found that he was the solitary occupant of the only fragment that survived of the Balearic Archipelago.
Such was the substance of the narrative which the professor gave with sundry repetitions and digressions; while he was giving it, he frequently paused and frowned as if irritated in a way that seemed by no means justified by the patient and good-humored demeanor of his audience.
“But now, gentlemen,” added the professor, “I must tell you something more. Important changes have resulted from the collision; the cardinal points have been displaced; gravity has been diminished: not that I ever supposed for a minute, as you did, that I was still upon the earth. No! the earth, attended by her moon, continued to rotate along her proper orbit. But we, gentlemen, have nothing to complain of; our destiny might have been far worse; we might all have been crushed to death, or the comet might have remained in adhesion to the earth; and in neither of these cases should we have had the satisfaction of making this marvelous excursion through untraversed solar regions. No, gentlemen, I repeat it, we have nothing to regret.”
And as the professor spoke, he seemed to kindle with the emotion of such supreme contentment that no one had the heart to gainsay his assertion. Ben Zoof alone ventured an unlucky remark to the effect that if the comet had happened to strike against Montmartre, instead of a bit of Africa, it would have met with some resistance.
“Pshaw!” said Rosette, disdainfully. “A mole-hill like Montmartre would have been ground to powder in a moment.”
“Mole-hill!” exclaimed Ben Zoof, stung to the quick. “I can tell you it would have caught up your bit of a comet and worn it like a feather in a cap.”
The professor looked angry, and Servadac having imposed silence upon his orderly, explained the worthy soldier’s sensitiveness on all that concerned Montmartre. Always obedient to his master, Ben Zoof held his tongue; but he felt that he could never forgive the slight that had been cast upon his beloved home.
It was now all-important to learn whether the astronomer had been able to continue his observations, and whether he had learned sufficient of Gallia’s path through space to make him competent to determine, at least approximately, the period of its revolution round the sun. With as much tact and caution as he could, Lieutenant Procope endeavored to intimate the general desire for some information on this point.
“Before the shock, sir,” answered the professor, “I had conclusively demonstrated the path of the comet; but, in consequence of the modifications which that shock has entailed upon my comet’s orbit, I have been compelled entirely to recommence my calculations.”
The lieutenant looked disappointed.
“Although the orbit of the earth was unaltered,” continued the professor, “the result of the collision was the projection of the comet into a new orbit altogether.”
“And may I ask,” said Procope, deferentially, “whether you have got the elements of the fresh orbit?”
“Yes.”
“Then perhaps you know—”
“I know this, sir, that at 47 minutes 35.6 seconds after two o’clock on the morning of the 1st of January last, Gallia, in passing its ascending node, came in contact with the earth; that on the 10th of January it crossed the orbit of Venus; that it reached its perihelion on the 15th; that it re-crossed the orbit of Venus; that on the 1st of February it passed its descending node; on the 13th crossed the orbit of Mars; entered the zone of the telescopic planets on the 10th of March, and, attracting Nerina, carried it off as a satellite.”
Servadac interposed:
“We are already acquainted with well-nigh all these extraordinary facts; many of them, moreover, we have learned from documents which we have picked up, and which, although unsigned, we cannot entertain a doubt have originated with you.”
Professor Rosette drew himself up proudly and said: “Of course, they originated with me. I sent them off by hundreds. From whom else could they come?”
“From no one but yourself, certainly,” rejoined the count, with grave politeness.
Hitherto the conversation had thrown no light upon the future movements of Gallia, and Rosette was disposed apparently to evade, or at least to postpone, the subject. When, therefore, Lieutenant Procope was about to press his inquiries in a more categorical form, Servadac, thinking it advisable not prematurely to press the littlesavanttoo far, interrupted him by asking the professor how he accounted for the earth having suffered so little from such a formidable concussion.
“I account for it in this way,” answered Rosette: “the earth was traveling at the rate of 28,000 leagues an hour, and Gallia at the rate of 57,000 leagues an hour, therefore the result was the same as though a train rushing along at a speed of about 86,000 leagues an hour had suddenly encountered some obstacle. The nucleus of the comet, being excessively hard, has done exactly what a ball would do fired with that velocity close to a pane of glass. It has crossed the earth without cracking it.”
“It is possible you may be right,” said Servadac, thoughtfully.
“Right! of course I am right!” replied the snappish professor. Soon, however, recovering his equanimity, he continued: “It is fortunate that the earth was only touched obliquely; if the comet had impinged perpendicularly, it must have plowed its way deep below the surface, and the disasters it might have caused are beyond reckoning. Perhaps,” he added, with a smile, “even Montmartre might not have survived the calamity.”
“Sir!” shouted Ben Zoof, quite unable to bear the unprovoked attack.
“Quiet, Ben Zoof!” said Servadac sternly.
Fortunately for the sake of peace, Isaac Hakkabut, who at length was beginning to realize something of the true condition of things, came forward at this moment, and in a voice trembling with eagerness, implored the professor to tell him when they would all be back again upon the earth.
“Are you in a great hurry?” asked the professor coolly.
The Jew was about to speak again, when Captain Servadac interposed: “Allow me to say that, in somewhat more scientific terms, I was about to ask you the same question. Did I not understand you to say that, as the consequence of the collision, the character of the comet’s orbit has been changed?”
“You did, sir.”
“Did you imply that the orbit has ceased to be a parabola?”
“Just so.”
“Is it then an hyperbola? and are we to be carried on far and away into remote distance, and never, never to return?”
“I did not say an hyperbola.”
“And is it not?”
“It is not.”
“Then it must be an ellipse?”
“Yes.”
“And does its plane coincide with the plane of the earth?”
“Yes.”
“Then it must be a periodic comet?”
“It is.”
Servadac involuntarily raised a ringing shout of joy that echoed again along the gallery.
“Yes,” continued the professor, “Gallia is a periodic comet, and allowing for the perturbations to which it is liable from the attraction of Mars and Jupiter and Saturn, it will return to the earth again in two years precisely.”
“You mean that in two years after the first shock, Gallia will meet the earth at the same point as they met before?” said Lieutenant Procope.
“I am afraid so,” said Rosette.
“Why afraid?”
“Because we are doing exceedingly well as we are.” The professor stamped his foot upon the ground, by way of emphasis, and added, “If I had my will, Gallia should never return to the earth again!”