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<h2> CHAPTER IV. A REVISED CALENDAR </h2>
<p>All previous hypotheses, then, were now forgotten in the presence of the
one great fact that Gallia was a comet and gravitating through remote
solar regions. Captain Servadac became aware that the huge disc that had
been looming through the clouds after the shock was the form of the
retreating earth, to the proximity of which the one high tide they had
experienced was also to be attributed.</p>
<p>As to the fulfillment of the professor's prediction of an ultimate return
to the terrestrial sphere, that was a point on which it must be owned that
the captain, after the first flush of his excitement was over, was not
without many misgivings.</p>
<p>The next day or two were spent in providing for the accommodation of the
new comer. Fortunately his desires were very moderate; he seemed to live
among the stars, and as long as he was well provided with coffee, he cared
little for luxuries, and paid little or no regard to the ingenuity with
which all the internal arrangements of Nina's Hive had been devised.
Anxious to show all proper respect to his former tutor, Servadac proposed
to leave the most comfortable apartment of the place at his disposal; but
the professor resolutely declined to occupy it, saying that what he
required was a small chamber, no matter how small, provided that it was
elevated and secluded, which he could use as an observatory and where he
might prosecute his studies without disturbance. A general search was
instituted, and before long they were lucky enough to find, about a
hundred feet above the central grotto, a small recess or reduct hollowed,
as it were, in the mountain side, which would exactly answer their
purpose. It contained room enough for a bed, a table, an arm-chair, a
chest of drawers, and, what was of still more consequence, for the
indispensable telescope. One small stream of lava, an off-shoot of the
great torrent, sufficed to warm the apartment enough.</p>
<p>In these retired quarters the astronomer took up his abode. It was on all
hands acknowledged to be advisable to let him go on entirely in his own
way. His meals were taken to him at stated intervals; he slept but little;
carried on his calculations by day, his observations by night, and very
rarely made his appearance amongst the rest of the little community.</p>
<p>The cold now became very intense, the thermometer registering 30 degrees
F. below zero. The mercury, however, never exhibited any of those
fluctuations that are ever and again to be observed in variable climates,
but continued slowly and steadily to fall, and in all probability would
continue to do so until it reached the normal temperature of the regions
of outlying space.</p>
<p>This steady sinking of the mercury was accompanied by a complete stillness
of the atmosphere; the very air seemed to be congealed; no particle of it
stirred; from zenith to horizon there was never a cloud; neither were
there any of the damp mists or dry fogs which so often extend over the
polar regions of the earth; the sky was always clear; the sun shone by day
and the stars by night without causing any perceptible difference in the
temperature.</p>
<p>These peculiar conditions rendered the cold endurable even in the open
air. The cause of so many of the diseases that prove fatal to Arctic
explorers resides in the cutting winds, unwholesome fogs, or terrible snow
drifts, which, by drying up, relaxing, or otherwise affecting the lungs,
make them incapable of fulfilling their proper functions. But during
periods of calm weather, when the air has been absolutely still, many
polar navigators, well-clothed and properly fed, have been known to
withstand a temperature when the thermometer has fallen to 60 degrees
below zero. It was the experience of Parry upon Melville Island, of Kane
beyond latitude 81 degrees north, and of Hall and the crew of the <i>Polaris</i>,
that, however intense the cold, in the absence of the wind they could
always brave its rigor.</p>
<p>Notwithstanding, then, the extreme lowness of the temperature, the little
population found that they were able to move about in the open air with
perfect immunity. The governor general made it his special care to see
that his people were all well fed and warmly clad. Food was both wholesome
and abundant, and besides the furs brought from the <i>Dobryna's</i>
stores, fresh skins could very easily be procured and made up into wearing
apparel. A daily course of out-door exercise was enforced upon everyone;
not even Pablo and Nina were exempted from the general rule; the two
children, muffled up in furs, looking like little Esquimeaux, skated along
together, Pablo ever at his companion's side, ready to give her a helping
hand whenever she was weary with her exertions.</p>
<p>After his interview with the newly arrived astronomer, Isaac Hakkabut
slunk back again to his tartan. A change had come over his ideas; he could
no longer resist the conviction that he was indeed millions and millions
of miles away from the earth, where he had carried on so varied and
remunerative a traffic. It might be imagined that this realization of his
true position would have led him to a better mind, and that, in some
degree at least, he would have been induced to regard the few
fellow-creatures with whom his lot had been so strangely cast, otherwise
than as mere instruments to be turned to his own personal and pecuniary
advantage; but no—the desire of gain was too thoroughly ingrained
into his hard nature ever to be eradicated, and secure in his knowledge
that he was under the protection of a French officer, who, except under
the most urgent necessity, would not permit him to be molested in
retaining his property, he determined to wait for some emergency to arise
which should enable him to use his present situation for his own profit.</p>
<p>On the one hand, the Jew took it into account that although the chances of
returning to the earth might be remote, yet from what he had heard from
the professor he could not believe that they were improbable; on the
other, he knew that a considerable sum of money, in English and Russian
coinage, was in the possession of various members of the little colony,
and this, although valueless now, would be worth as much as ever if the
proper condition of things should be restored; accordingly, he set his
heart on getting all the monetary wealth of Gallia into his possession,
and to do this he must sell his goods. But he would not sell them yet;
there might come a time when for many articles the supply would not be
equal to the demand; that would be the time for him; by waiting he
reckoned he should be able to transact some lucrative business.</p>
<p>Such in his solitude were old Isaac's cogitations, whilst the universal
population of Nina's Hive were congratulating themselves upon being rid of
his odious presence.</p>
<p>As already stated in the message brought by the carrier pigeon, the
distance traveled by Gallia in April was 39,000,000 leagues, and at the
end of the month she was 110,000,000 leagues from the sun. A diagram
representing the elliptical orbit of the planet, accompanied by an
ephemeris made out in minute detail, had been drawn out by the professor.
The curve was divided into twenty-four sections of unequal length,
representing respectively the distance described in the twenty-four months
of the Gallian year, the twelve former divisions, according to Kepler's
law, gradually diminishing in length as they approached the point denoting
the aphelion and increasing as they neared the perihelion.</p>
<p>It was on the 12th of May that Rosette exhibited this result of his labors
to Servadac, the count, and the lieutenant, who visited his apartment and
naturally examined the drawing with the keenest interest. Gallia's path,
extending beyond the orbit of Jupiter, lay clearly defined before their
eyes, the progress along the orbit and the solar distances being inserted
for each month separately. Nothing could look plainer, and if the
professor's calculations were correct (a point upon which they dared not,
if they would, express the semblance of a doubt), Gallia would accomplish
her revolution in precisely two years, and would meet the earth, which
would in the same period of time have completed two annual revolutions, in
the very same spot as before. What would be the consequences of a second
collision they scarcely ventured to think.</p>
<p>Without lifting his eye from the diagram, which he was still carefully
scrutinizing, Servadac said, "I see that during the month of May, Gallia
will only travel 30,400,000 leagues, and that this will leave her about
140,000,000 leagues distant from the sun."</p>
<p>"Just so," replied the professor.</p>
<p>"Then we have already passed the zone of the telescopic planets, have we
not?" asked the count.</p>
<p>"Can you not use your eyes?" said the professor, testily. "If you will
look you will see the zone marked clearly enough upon the map."</p>
<p>Without noticing the interruption, Servadac continued his own remarks,
"The comet then, I see, is to reach its aphelion on the 15th of January,
exactly a twelvemonth after passing its perihelion."</p>
<p>"A twelvemonth! Not a Gallian twelvemonth?" exclaimed Rosette.</p>
<p>Servadac looked bewildered. Lieutenant Procope could not suppress a smile.</p>
<p>"What are you laughing at?" demanded the professor, turning round upon him
angrily.</p>
<p>"Nothing, sir; only it amuses me to see how you want to revise the
terrestrial calendar."</p>
<p>"I want to be logical, that's all."</p>
<p>"By all manner of means, my dear professor, let us be logical."</p>
<p>"Well, then, listen to me," resumed the professor, stiffly. "I presume you
are taking it for granted that the Gallian year—by which I mean the
time in which Gallia makes one revolution round the sun—is equal in
length to two terrestrial years."</p>
<p>They signified their assent.</p>
<p>"And that year, like every other year, ought to be divided into twelve
months."</p>
<p>"Yes, certainly, if you wish it," said the captain, acquiescing.</p>
<p>"If I wish it!" exclaimed Rosette. "Nothing of the sort! Of course a year
must have twelve months!"</p>
<p>"Of course," said the captain.</p>
<p>"And how many days will make a month?" asked the professor.</p>
<p>"I suppose sixty or sixty-two, as the case may be. The days now are only
half as long as they used to be," answered the captain.</p>
<p>"Servadac, don't be thoughtless!" cried Rosette, with all the petulant
impatience of the old pedagogue. "If the days are only half as long as
they were, sixty of them cannot make up a twelfth part of Gallia's year—cannot
be a month."</p>
<p>"I suppose not," replied the confused captain.</p>
<p>"Do you not see, then," continued the astronomer, "that if a Gallian month
is twice as long as a terrestrial month, and a Gallian day is only half as
long as a terrestrial day, there must be a hundred and twenty days in
every month?"</p>
<p>"No doubt you are right, professor," said Count Timascheff; "but do you
not think that the use of a new calendar such as this would practically be
very troublesome?"</p>
<p>"Not at all! not at all! I do not intend to use any other," was the
professor's bluff reply.</p>
<p>After pondering for a few moments, the captain spoke again. "According,
then, to this new calendar, it isn't the middle of May at all; it must now
be some time in March."</p>
<p>"Yes," said the professor, "to-day is the 26th of March. It is the 266th
day of the Gallian year. It corresponds with the 133d day of the
terrestrial year. You are quite correct, it is the 26th of March."</p>
<p>"Strange!" muttered Servadac.</p>
<p>"And a month, a terrestrial month, thirty old days, sixty new days hence,
it will be the 86th of March."</p>
<p>"Ha, ha!" roared the captain; "this is logic with a vengeance!"</p>
<p>The old professor had an undefined consciousness that his former pupil was
laughing at him; and as it was growing late, he made an excuse that he had
no more leisure. The visitors accordingly quitted the observatory.</p>
<p>It must be owned that the revised calendar was left to the professor's
sole use, and the colony was fairly puzzled whenever he referred to such
unheard-of dates as the 47th of April or the 118th of May.</p>
<p>According to the old calendar, June had now arrived; [illustration
omitted] [page intentionally blank] and by the professor's tables Gallia
during the month would have advanced 27,500,000 leagues farther along its
orbit, and would have attained a distance of 155,000,000 leagues from the
sun. The thermometer continued to fall; the atmosphere remained clear as
heretofore. The population performed their daily avocations with
systematic routine; and almost the only thing that broke the monotony of
existence was an occasional visit from the blustering, nervous, little
professor, when some sudden fancy induced him to throw aside his
astronomical studies for a time, and pay a visit to the common hall. His
arrival there was generally hailed as the precursor of a little season of
excitement. Somehow or other the conversation would eventually work its
way round to the topic of a future collision between the comet and the
earth; and in the same degree as this was a matter of sanguine
anticipation to Captain Servadac and his friends, it was a matter of
aversion to the astronomical enthusiast, who had no desire to quit his
present quarters in a sphere which, being of his own discovery, he could
hardly have cared for more if it had been of his own creation. The
interview would often terminate in a scene of considerable animation.</p>
<p>On the 27th of June (old calendar) the professor burst like a cannon-ball
into the central hall, where they were all assembled, and without a word
of salutation or of preface, accosted the lieutenant in the way in which
in earlier days he had been accustomed to speak to an idle school-boy,
"Now, lieutenant! no evasions! no shufflings! Tell me, have you or have
you not circumnavigated Gallia?"</p>
<p>The lieutenant drew himself up stiffly. "Evasions! shufflings! I am not
accustomed, sir—" he began in a tone evidencing no little
resentment; but catching a hint from the count he subdued his voice, and
simply said, "We have."</p>
<p>"And may I ask," continued the professor, quite unaware of his previous
discourtesy, "whether, when you made your voyage, you took any account of
distances?"</p>
<p>"As approximately as I could," replied the lieutenant; "I did what I could
by log and compass. I was unable to take the altitude of sun or star."</p>
<p>"At what result did you arrive? What is the measurement of our equator?"</p>
<p>"I estimate the total circumference of the equator to be about 1,400
miles."</p>
<p>"Ah!" said the professor, more than half speaking to himself, "a
circumference of 1,400 miles would give a diameter of about 450 miles.
That would be approximately about one-sixteenth of the diameter of the
earth."</p>
<p>Raising his voice, he continued, "Gentlemen, in order to complete my
account of my comet Gallia, I require to know its area, its mass, its
volume, its density, its specific gravity."</p>
<p>"Since we know the diameter," remarked the lieutenant, "there can be no
difficulty in finding its surface and its volume."</p>
<p>"And did I say there was any difficulty?" asked the professor, fiercely.
"I have been able to reckon that ever since I was born."</p>
<p>"Cock-a-doodle-doo!" cried Ben Zoof, delighted at any opportunity of
paying off his old grudge.</p>
<p>The professor looked at him, but did not vouchsafe a word. Addressing the
captain, he said, "Now, Servadac, take your paper and a pen, and find me
the surface of Gallia."</p>
<p>With more submission than when he was a school-boy, the captain sat down
and endeavored to recall the proper formula.</p>
<p>"The surface of a sphere? Multiply circumference by diameter."</p>
<p>"Right!" cried Rosette; "but it ought to be done by this time."</p>
<p>"Circumference, 1,400; diameter, 450; area of surface, 630,000," read the
captain.</p>
<p>"True," replied Rosette, "630,000 square miles; just 292 times less than
that of the earth."</p>
<p>"Pretty little comet! nice little comet!" muttered Ben Zoof.</p>
<p>The astronomer bit his lip, snorted, and cast at him a withering look, but
did not take any further notice.</p>
<p>"Now, Captain Servadac," said the professor, "take your pen again, and
find me the volume of Gallia."</p>
<p>The captain hesitated.</p>
<p>"Quick, quick!" cried the professor, impatiently; "surely you have not
forgotten how to find the volume of a sphere!"</p>
<p>"A moment's breathing time, please."</p>
<p>"Breathing time, indeed! A mathematician should not want breathing time!
Come, multiply the surface by the third of the radius. Don't you
recollect?"</p>
<p>Captain Servadac applied himself to his task while the by-standers waited,
with some difficulty suppressing their inclination to laugh. There was a
short silence, at the end of which Servadac announced that the volume of
the comet was 47,880,000 cubic miles.</p>
<p>"Just about 5,000 times less than the earth," observed the lieutenant.</p>
<p>"Nice little comet! pretty little comet!" said Ben Zoof.</p>
<p>The professor scowled at him, and was manifestly annoyed at having the
insignificant dimensions of his comet pointed out in so disparaging a
manner. Lieutenant Procope further remarked that from the earth he
supposed it to be about as conspicuous as a star of the seventh magnitude,
and would require a good telescope to see it.</p>
<p>"Ha, ha!" laughed the orderly, aloud; "charming little comet! so pretty;
and so modest!"</p>
<p>"You rascal!" roared the professor, and clenched his hand in passion, as
if about to strike him. Ben Zoof laughed the more, and was on the point of
repeating his satirical comments, when a stern order from the captain made
him hold his tongue. The truth was that the professor was just as
sensitive about his comet as the orderly was about Montmartre, and if the
contention between the two had been allowed to go on unchecked, it is
impossible to say what serious quarrel might not have arisen.</p>
<p>When Professor Rosette's equanimity had been restored, he said, "Thus,
then, gentlemen, the diameter, the surface, the volume of my comet are
settled; but there is more to be done. I shall not be satisfied until, by
actual measurement, I have determined its mass, its density, and the force
of gravity at its surface."</p>
<p>"A laborious problem," remarked Count Timascheff.</p>
<p>"Laborious or not, it has to be accomplished. I am resolved to find out
what my comet weighs."</p>
<p>"Would it not be of some assistance, if we knew of what substance it is
composed?" asked the lieutenant.</p>
<p>"That is of no moment at all," replied the professor; "the problem is
independent of it."</p>
<p>"Then we await your orders," was the captain's reply.</p>
<p>"You must understand, however," said Rosette, "that there are various
preliminary calculations to be made; you will have to wait till they are
finished."</p>
<p>"As long as you please," said the count.</p>
<p>"No hurry at all," observed the captain, who was not in the least
impatient to continue his mathematical exercises.</p>
<p>"Then, gentlemen," said the astronomer, "with your leave we will for this
purpose make an appointment a few weeks hence. What do you say to the 62d
of April?"</p>
<p>Without noticing the general smile which the novel date provoked, the
astronomer left the hall, and retired to his observatory.</p>
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