Rifle grenades are thrown by the propulsive power of the ordinary cartridge. A special contrivance at the muzzle of the gun cocks the grenade, so to speak, as it is driven from the barrel by the bullet, so that it will explode on hitting the ground. It reaches farther than the hand grenade. Recently General Pershing rightly laid stress on the necessity of perfecting the marksmanship of the recruits. To this accomplishment and skill in the use of the bayonet, which gives the soldier self-reliance, suppleness, and agility (qualities that the Germans do not easily acquire) ought to be added a thorough training in the throwing of grenades, a sport which promptly captivates those who practise it. Excellent results are secured by offering prizes for grenade practice, both for distance and marksmanship. The French soldier is contented with little, and the mere offer of a few cigars or packages of cigarettes to the best throwers has achieved wonderful performances in this line. We believe that the Germans have no reason to congratulate themselves on having been the first to reintroduce the use of grenades in warfare, because it is a weapon requiring intelligence and skill in its handling. Thrown by shrewd quick Frenchmen, or by sportsmen like the British, it is much more dangerous than in the hands of thick-headed, passive German soldiers. We are sure that the American troops will use the grenade with the same skill as their Allies. TRENCH KNIVES. The trench-fight is a fight to a finish, and has necessitated the adoption of a strong knife. In the hands of fierce resolute men it is a terrible weapon, much resorted to in the confined space of trenches, tunnels, and dugouts where bayonets cannot be used. The African troops are very fond of these knives, and as the Germans are well aware of this fact, they never surrender to African troops, and the fights between these combatants always smack of savagery. On account of their fear of knives and daggers the Germans have pronounced their use inhuman, and have shot many prisoners on whom daggers were found. It is advisable, then, for troops obliged to surrender (and the bravest troops may have to do so) to throw their daggers away in good time. AUTOMATIC PISTOLS. Officers and non-commissioned officers only have automatics, but we would like to see them issued to the infantry, as they _are most useful in hand-to-hand fights_. The use of the various arms above named has necessitated the division of the company into grenadiers, machine-gunners, and light infantry. The last-named fight especially with the ordinary rifles, bayonets, and daggers.