In demonstrating the first grenade he adjusted around his wrist a loop with about eight inches of cord hanging from it. A heavy two-inch metal pin was attached to the end of the cord. Picking up a black spherical bomb slightly bigger than a baseball, he stuck the pin lightly into a hole in its side. The bomb was to be thrown with full force. In flying out of the hand it pulled itself free from the pin, causing a friction which ignited the five-second fuse. The pin of course remained behind, hanging to the cord, and was promptly stuck into another bomb. This bomb, being particularly heavy, could be thrown only fifteen metres by an average thrower and twenty as a maximum. The second bomb was black and pear-shaped. It had a spring which looked like a nickel shoe-horn folded back tight against it. The pressure of the palm against the shoe-horn in throwing it released the spring and started the fuse, which, like all the rest, was set at five seconds. The third bomb was a can of white tin attached by two wires to a white deal handle. A nail was stuck into a hole in the can. The nail was hammered in by a sharp rap against the ground. ("If you try to knock it in against the palm of your hand it would hurt," explained our instructor.) The nail, driven in, started the fuse. In the demonstration of this particular bomb our mentor was quite peculiarly realistic, bringing it violently down to within what seemed like the fraction of an inch of the ground. The fourth bomb was black and round and was started by scratching the tip of a stiffly projecting bit of ignitible fuse against a black band of raspy material worn round the thumb of the left hand. The fifth bomb was lighted in a very similar manner against the side of an ordinary safety-match box. These five were regular grenades. The sixth and seventh were incendiary grenades to set fire to wooden obstructions, etc. The one, in exploding, scattered the burning liquid to a distance of a few yards, the other set fire only to the spot where it burst. These were both large spherical bombs. Before being thrown kerosene was poured into them through a little bunghole, which was then stopped up. The eighth was an asphyxiating bomb. I cannot, however, be too careful in emphasizing the fact that this so-called "asphyxiating" bomb was not poisonous, like the German asphyxiating gases, but merely irritated the eyes, nostrils and throat, so that when thrown into a German bomb-proof it would force out the occupants. It left no ill after-effects. Besides these there were two aerial torpedoes. One was shot out of an old-fashioned little mortar propelled by black powder. The other was bigger and more powerful, had a fin tail to keep its flight accurate and was fired out of a complicated little gun. As both this torpedo and its gun are new inventions, I am not permitted to give any closer details concerning them.