Wooden Cross. Two pieces of wood in the form of a cross placed at the head of a Tommy's grave. Inscribed on it are his rank, name, number, and regiment. Also date of death and last but not least, the letters R. I. P. Working Party. A sort of compulsory invitation affair for which Tommy often is honored with an invitation. It consists of digging, filling sandbags, and ducking shells and bullets. Z "Zeppelin" A bag full of gas invented by a count full of gas. It is a dirigible airship used by the Germans for killing babies and dropping bombs in open fields. You never see them over the trenches, it is safer to bombard civilians in cities. They use Iron Crosses for ballast. {Advertisement: FIRST CALL by Arthur Guy Empey.}