The leader of every party of ten also had a whistle with which to repeat the warning blast and then the final blast, when each man was to drop everything and get back of our artillery fire. We were not to leave any dead or wounded in the German trench, on account of the information which the Germans might thus obtain. Before starting on the raid, we had removed all marks from our persons, including even our identification discs. Except for the signallers, each party of ten was similarly organized. First, there were two bayonet men, each with an electric flash light attached to his rifle so as to give light for the direction of a bayonet thrust and controlled by a button at the left-hand grasp of the rifle. Besides his rifle, each of these men carried six or eight Mills No. 5 hand grenades, weighing from a pound and five ounces to a pound and seven ounces each. These grenades are shaped like turkey eggs, but slightly larger. Upon withdrawing the firing pin, a lever sets a four-second fuse going. One of these grenades will clean out anything living in a ten-foot trench section. It will also kill the man throwing it, if he holds it more than four seconds, after he has pulled the pin. The third man of each ten was an expert bomb thrower, equipped as lightly as possible to give him freedom of action. He carried a few bombs, himself, but the main supply was carried by a fourth man who was not to throw any unless the third man became a casualty, in which case number four was to take his place. The third man also carried a knob-kerrie--a heavy bludgeon to be used in whacking an enemy over the head. The kind we used was made by fastening a heavy steel nut on a stout stick of wood--a very business-like contrivance. The fourth man, or bomb carrier, besides having a large supply of Mills grenades, had smoke bombs, to be used in smoking the Germans out of dug-outs and, later, if necessary, in covering our retreat, and also fumite bombs. The latter are very dangerous to handle. They contain a mixture of petrol and phosphorous, and weigh three pounds each. On exploding they release a liquid fire which will burn through steel.