Effect of Bullets

—From experiments made in Denmark, the following relations were found between the penetration of a bullet in pine and its effects on the body of a living horse, viz.: 1st. When the force of the bullet is sufficient to penetrate 0.31 inch into pine, it is only sufficient to produce a slight contusion of the skin. 2d. When the force of penetration is equal to 0.63 inch, the wound begins to be dangerous, but does not disable. 3d. When the force of penetration is equal to 1.2 inch, the wound is very dangerous. A plate of wrought iron three-sixteenths of an inch thick, is sufficient to resist a rifle-musket bullet at distances varying from 20 to 200 yards. Iron of thickne , however, will not resist bullets of the present day. That a rope mantlet may give full protection against rifle-musket bullets, it should be composed of five layers (three vertical and two horizontal) of 4 1 ⁄ 2 -inch rope.