rying a twenty-four pound, elongated projectile, with a maximum range of 473 yards. The Lyle gun, which has superseded these, is of bronze, smooth bore, weighing 185 pounds, with a cylindrical line-carrying shot weighing seventeen pounds, and a range of 695 yards. The reduction in weight over the lightest previous ordnance is 110 pounds, and the increase in range over the old éprouvette is 274 yards. Other advantages of the Lyle gun are its strength, owing to the tenacity and ductility of its material, its freedom from corrosion, and its exemption from the erosive action of gases, there being little windage, and from wear by the projectile, this being nearly the length of the bore. The projectile has a shank protruding four inches from the muzzle of the gun, to an eye in which the line is tied—a device which