FIRST: GIVING THE INDIVIDUAL A PRACTICAL KNOWLEDGE OF THE WORKING OF THE GRENADES IN USE.--The differences in the construction and the uses of hand and rifle grenades should be brought out clearly. The various sorts of grenades should be explained and men should not forget the importance of knowing the grenades of the enemy as well as our own. This knowledge may one day prove of no little importance. As has already been stated, the Mills No. 5 is the standard among hand grenades of the Allies. It conforms to the general description of hand grenades; _i.e._, it is an egg-shaped projectile, more or less hollow, and loaded with a charge of explosive. Besides this it has an apparatus for setting off the bursting charge. It weighs 1 pound 5 ounces approximately, and 4 ounces of this is high explosive. The shell being of serrated cast-iron, an explosion will scatter a sort of shrapnel over an area equal to three times the height. No more need be said of the effectiveness of such a weapon. Among rifle grenades the Mills is also the standard more or less, although the French make great use of a rifle grenade that fits over the muzzle of the rifle, fired by ball cartridge, in contrast to the Mills No. 23, which has a rod running down the barrel of the rifle and which is propelled by the explosion of a blank cartridge. The maximum range of this grenade with a 5-1/2-inch stem is 120 yards, the gun being fired at an angle of 45 degrees. The Newton Improved (a rifle grenade which explodes on contact) has a range of 250 yards; the Hale No. 3 also explodes on contact and has a range of 200-225 yards. [Illustration: Plate #7] SECOND: INSTRUCTION IN THROWING.--As previously stated the use of dummy grenades should precede the use of any live ones. Due precautions should be taken at all times, even when working with dummy grenades, for a habit of carelessness is not to be tolerated with this sort of weapon. Men should be instructed to throw from standing, kneeling and prone positions; although this last-named position is little used. Distance is important but ACCURACY IS ESSENTIAL. Men should always be taught to throw at a definite target, even when throwing in the open during preliminary work. The men may work in groups, one group throwing and the other returning. This method keeps all hands occupied and furnishes a medium for a little competition, which is a very helpful thing in training of this sort. A manual of the following sort may be of use in acquiring the proper sort of throw.