"Eleven thousand and fifty-one metres." "Malediction!" cried the president with a gesture of despair. "What's the matter with you?" asked Michel Ardan, much surprised. "The matter! why if at this moment the velocity was already diminished one-third by friction, the initial speed ought to have been--" "Sixteen thousand five hundred and seventy-six metres!" answered Nicholl. "But the Cambridge Observatory declared that 11,000 metres were enough at departure, and our bullet started with that velocity only!" "Well?" asked Nicholl. "Why it was not enough!" "No." "We shall not reach the neutral point." "The devil!" "We shall not even go half way!" "_Nom d'un boulet_!" exclaimed Michel Ardan, jumping up as if the projectile were on the point of striking against the terrestrial globe. "And we shall fall back upon the earth!" CHAPTER V. THE TEMPERATURE OF SPACE. This revelation acted like a thunderbolt. Who could have expected such an error in calculation? Barbicane would not believe it. Nicholl went over the figures again. They were correct. The formula which had established them could not be mistrusted, and, when verified, the initial velocity of 16,576 metres, necessary for attaining the neutral point, was found quite right. The three friends looked at one another in silence. No one thought about breakfast after that. Barbicane, with set teeth, contracted brow, and fists convulsively closed, looked through the port-light. Nicholl folded his arms and examined his calculations. Michel Ardan murmured-- "That's just like _savants_! That's the way they always do! I would give twenty pistoles to fall upon the Cambridge Observatory and crush it, with all its stupid staff inside!" All at once the captain made a reflection which struck Barbicane at once. "Why," said he, "it is seven o'clock in the morning, so we have been thirty-two hours on the road. We have come more than half way, and we are not falling yet that I know of!" Barbicane did not answer, but after a rapid glance at the captain he took a compass, which he used to measure the angular distance of the terrestrial globe. Then through the lower port-light he made a very exact observation from the apparent immobility of the projectile. Then rising and wiping the perspiration from his brow, he put down some figures upon paper. Nicholl saw that the president wished to find out from the length of the terrestrial diameter the distance of the bullet from the earth. He looked at him anxiously. "No!" cried Barbicane in a few minutes' time, "we are not falling! We are already more than 50,000 leagues from the earth! We have passed the point the projectile ought to have stopped at if its speed had been only 11,000 metres at our departure! We are still ascending!"