Answer.—Yes; provided it possess an initial velocity of 1,200 yards per second; calculations prove that to be sufficient. In proportion as we recede from the earth the action of gravitation diminishes in the inverse ratio of the square of the distance; that is to say, atthree times a given distance the action is nine times less. Consequently, the weight of a shot will decrease,and will become reduced to zero at the instant that the attraction of the moon exactly counterpoises that of the earth; that is to say at 47/52 of its passage. At that instant the projectile will have no weight whatever;and, if it passes that point, it will fall into the moon by the sole effect of the lunar attraction. The theoreticalpossibility of the experiment is therefore absolutely demonstrated; its success must depend upon the power of the engine employed.