Haversack. A canvas bag forming part of Tommy's equipment, carried on the left side. Its original use was intended for the carrying of emergency rations and small kit. It is generally filled with a miscellaneous assortment of tobacco, pipes, bread crumbs, letters, and a lot of useless souvenirs. "Having a doss." Having a sleep. "Hold-all." A small canvas roll in which you are supposed to carry your razor, comb, knife, fork, spoon, mirror, soap, tooth brush, etc. Tommy takes great care of the above, because it means extra pack drill to come on parade unshaven. "Holy Joe." Tommy's familiar but not necessarily irreverent same for the Chaplain. He really has a great admiration for this officer, who although not a fighting man, so often risks his life to save a wounded Tommy. "Housewife." A neat little package of needles, thread, extra shoelaces, and buttons. When a button comes off Tommy's trousers, instead of going to his housewife he looks around for a nail. Hun. Another term for a German, mostly used by war correspondents. "Hun pinching." Raiding German trenches for prisoners. I Identification Disk. A little fiber disk which is worn around the neck by means of a string. On one side is stamped your name, rank, regimental number, and regiment, while on the other side is stamped your religion. If at any time Tommy is doubtful of his identity he looks at his disk to reassure himself. "I'm sorry." Tommy's apology. If he pokes your eye out with his bayonet he says, "I'm sorry," and the matter is ended so far as he is concerned. "In front." Over the top; in front of the front-line trench, in No Man's Land. "In reserve." Troops occupying positions, billets, or dugouts, immediately in rear of the front line, who in case of an attack will support the firing line. Intelligence Department. Secret service men who are supposed to catch spies or be spies as the occasion demands. Interpreter. A fat job with a "return ticket," held by a soldier who thinks he can speak a couple of languages. He questions prisoners as to the color of their grandmothers' eyes and why they joined the army. Just imagine asking a German "why" he joined the army. "Invalided." Sent to England on account of sickness. Iron Rations. A tin of bully beef, two biscuits, and a tin containing tea, sugar, and Oxo cubes. These are not supposed to be eaten until you die of starvation. Isolated Post. An advanced part of a trench or position where one or two sentries are posted to guard against a surprise attack. While in this post Tommy is constantly wondering what the Germans will do with his body. "It's good we have a Navy." One of Tommy's expressions when he is disgusted with the army and its work. J "Jack Johnson." A seventeen-inch German shell. Probably called "Jack Johnson" because the Germans thought that with it they could lick the world.