Barbicane had set his chronometer to the tenth of a second by that of the engineer Murchison, who was entrusted with setting fire to the powder by means of the electric spark; the travellers shut up in the projectile could thus watch the impassive needle which was going to mark the precise instant of their departure.
The moment for saying farewell had come. The scene was touching; in spite of his gaiety Michel Ardan felt touched. J.T. Maston had found under his dry eyelids an ancient tear that he had, doubtless, kept for the occasion. He shed it upon the forehead of his dear president.
"Suppose I go too?" said he. "There is still time!"
"Impossible, old fellow," answered Barbicane.
A few moments later the three travelling companions were installed in the projectile, and had screwed down the door-plate, and the mouth of the Columbiad, entirely liberated, rose freely towards the sky.
Nicholl, Barbicane, and Michel Ardan were definitively walled up in their metal vehicle.
Who could predict the universal emotion then at its paroxysm?
The moon was rising in a firmament of limpid purity, outshining on her passage the twinkling fire of the stars; she passed over the constellation of the Twins, and was now nearly halfway between the horizon and the zenith.
A frightful silence hung over all that scene. There was not a breath of wind on the earth! Not a sound of breathing from the crowd! Hearts dared not beat. Every eye was fixed on the gaping mouth of the Columbiad.
Murchison watched the needle of his chronometer. Hardly forty seconds had to elapse before the moment of departure struck, and each one lasted a century!