According to the plan drawn up by the members of the observatory, the cannon destined to hurl the projectile was to be set up in some country situated between the 0 deg. and 28 deg. of north or south latitude in order to aim at the moon at the zenith.  The bullet was to be endowed with an initial velocity of 12,000 yards a second.  Hurled on the 1st of December at thirteen minutes and twenty seconds to eleven in the evening, it was to get to the moon four days after its departure on the 5th of December at midnight precisely, at the very instant she would be at her perigee—­that is to say, nearest to the earth, or at exactly 86,410 leagues’ distance.

The principal members of the Gun Club, the president, Barbicane, Major Elphinstone, the secretary, J.T.  Maston, and other savants, held several meetings, in which the form and composition of the bullet were discussed, as well as the disposition and nature of the cannon, and the quality and quantity of the powder to be employed.  It was decided—­1, that the projectile should be an obus of aluminium, with a diameter of 800 inches; its sides were to be 12 inches thick, and it was to weigh 19,250 lbs.; 2, that the cannon should be a cast-iron Columbiad 900 feet long, and should be cast at once in the ground; 3, that the charge should consist of 400,000 lbs. of gun-cotton, which, by developing 6,000,000,000 litres of gas under the projectile, would carry it easily towards the Queen of Night.

These questions settled, President Barbicane, aided by the engineer, Murchison, chose a site in Florida in 27 deg. 7’ north lat. and 5 deg. 7’ west long.  It was there that after marvels of labour the Columbiad was cast quite successfully.

Things were at that pass when an incident occurred which Increased the interest attached to this great enterprise.

A Frenchman, a regular Parisian, an artist as witty as audacious, asked leave to shut himself up in the bullet in order to reach the moon and make a survey of the terrestrial satellite.  This intrepid adventurer’s name was Michel Ardan.  He arrived in America, was received with enthusiasm, held meetings, was carried in triumph, reconciled President Barbicane to his mortal enemy, Captain Nicholl, and in pledge of the reconciliation he persuaded them to embark with him in the projectile.

The proposition was accepted.  The form of the bullet was changed.  It became cylindro-conical.  They furnished this species of aerial compartment with powerful springs and breakable partitions to break the departing shock.  It was filled with provisions for one year, water for some months, and gas for some days.  An automatic apparatus made and gave out the air necessary for the respiration of the three travellers.  At the same time the Gun Club had a gigantic telescope set up on one of the highest summits of the Rocky Mountains, through which the projectile could be followed during its journey through space.  Everything was then ready.