Ben Zoof looked on and laughed, making no attempt to interfere; he had no sympathy with either of the two.

The sound of the scuffling, however, drew the attention of Servadac, who, followed by his companions, hastened to the scene. The combatants were soon parted. "What is the meaning of all this?" demanded the captain.

As soon as the professor had recovered his breath, exhausted by his exertions, he said, "The old reprobate, the rascal has cheated us! His steelyard is wrong! He is a thief!"

Captain Servadac looked sternly at Hakkabut.

"How is this, Hakkabut? Is this a fact?"

"No, no--yes--no, your Excellency, only--"

"He is a cheat, a thief!" roared the excited astronomer. "His weights deceive!"

"Stop, stop!" interposed Servadac; "let us hear. Tell me, Hakkabut--"

"The steelyard lies! It cheats! it lies!" roared the irrepressible Rosette.

"Tell me, Hakkabut, I say," repeated Servadac.

The Jew only kept on stammering, "Yes--no--I don't know."

But heedless of any interruption, the professor continued, "False weights! That confounded steelyard! It gave a false result! The mass was wrong! The observations contradicted the calculations; they were wrong! She was out of place! Yes, out of place entirely."

"What!" cried Servadac and Procope in a breath, "out of place?"

"Yes, completely," said the professor.

"Gallia out of place?" repeated Servadac, agitated with alarm.

"I did not say Gallia," replied Rosette, stamping his foot impetuously; "I said Nerina."

"Oh, Nerina," answered Servadac. "But what of Gallia?" he inquired, still nervously.

"Gallia, of course, is on her way to the earth. I told you so. But that Jew is a rascal!"

CHAPTER XV

A JOURNEY AND A DISAPPOINTMENT

It was as the professor had said. From the day that Isaac Hakkabut had entered upon his mercantile career, his dealings had all been carried on by a system of false weight. That deceitful steelyard had been the mainspring of his fortune. But when it had become his lot to be the purchaser instead of the vendor, his spirit had groaned within him at being compelled to reap the fruits of his own dishonesty. No one who had studied his character could be much surprised at the confession that was extorted from him, that for every supposed kilogramme that he had ever sold the true weight was only 750 grammes, or just five and twenty per cent. less than it ought to have been.

The professor, however, had ascertained all that he wanted to know. By estimating his comet at a third as much again as its proper weight, he had found that his calculations were always at variance with the observed situation of the satellite, which was immediately influenced by the mass of its primary.

But now, besides enjoying the satisfaction of having punished old Hakkabut, Rosette was able to recommence his calculations with reference to the elements of Nerina upon a correct basis, a task to which he devoted himself with redoubled energy.

It will be easily imagined that Isaac Hakkabut, thus caught in his own trap, was jeered most unmercifully by those whom he had attempted to make his dupes. Ben Zoof, in particular, was never wearied of telling him how on his return to the world he would be prosecuted for using false weights, and would certainly become acquainted with the inside of a prison. Thus badgered, he secluded himself more than ever in his dismal hole, never venturing, except when absolutely obliged, to face the other members of the community.

On the 7th of October the comet re-entered the zone of the telescopic planets, one of which had been captured as a satellite, and the origin of the whole of which is most probably correctly attributed to the disintegration of some large planet that formerly revolved between the orbits of Mars and Jupiter. By the beginning of the following month half of this zone had been traversed, and only two months remained before the collision with the earth was to be expected. The temperature was now rarely below 12 degrees below zero, but that was far too cold to permit the slightest symptoms of a thaw. The surface of the sea remained as frozen as ever, and the two vessels, high up on their icy pedestals, remained unaltered in their critical position.