NATURAL POINT-BLANC.— The point at which the line of sight intersects the trajectory the sec md time; or, more practically speaking, it is that point which, being aimed at, is struck by the projectile.
NmitT ASSAULT.— An assault undertaken in order to gain a point of support for further operations in daylight, to drive in an enemy's advanced troops, to secure an outpost position as a preliminary to an attack at dawn or to sur prise an ill-trained, ill-disciplined or semi-civilized enemy. NIGHT OPERATIONS.— Movements undertaken to out manoeuvre an enemy; to avoid observation, particularly when the enemy is provided with aircraft; to pass over an area of ground which it has been found difficult or impos sible to traverse in daylight; to continue or complete an attack begun before dark; and to effect a tactical surprise. Nome. Liotrrxii — A lighter for hand grenades having a five-second fuse attached,. It consists of two cardboard
tubes, one fitting over the other. Inside the top end of the outer tube there is a layer of friction composition; fixed on the top end of the inner tube is a forked brass friction bead, which is held in position by a safety pin fastened through both tubes. Inside the other end of the inner tube is a small copper band, into which the fuse is fitted. NOIEBT SYSTEM OP FORTIFICATION.— A system embracing the teaching of the school of Metz and having no sensible departure from the views and method of Cormontaigne, excepting to introduce such modifications as would remedy some of the acknowledged defects of his method. The front planned by Noizet has been taken as an elementary exercise for instruction in the art of fortification for the cadets at the United States Military Academy at West Point.