“Yes?” said Barbicane.

“Twelve thousand yards.”

“What!” exclaimed Barbicane, starting; “you say—”

“Twelve thousand yards.”

“The devil!” cried the president, making a gesture of despair.

“What is the matter?” asked Michel Ardan, much surprised.

“What is the matter! why, if at this moment our speed had already diminished one-third by friction, the initiatory speed ought to have been—”

“Seventeen thousand yards.”

“And the Cambridge Observatory declared that twelve thousand yards was enough at starting; and our projectile, which only started with that speed—”

“Well?” asked Nicholl.