When the war ended, the American Camouflage Service consisted of a battalion of the 40th Engineers—which was on the point of being expanded into a regiment—under the command of Lieutenant-Colonel H. S. Bennison, with Evarts Tracy, one of the foremost architects in America, as major. Captain Homer Saint-Gaudens, a son of the famous sculptor, was in charge of the camouflage work of the Second Army, and Captain John Root, whose father was architect of the Colombian Exposition, was in charge of all camouflage work for the army artillery, he being largely responsible for the remarkable developments in this branch of warfare. The director of the Camouflage School at Fort St. Menge was Lieutenant Wilford S. Conrow, the noted portrait-painter. Another officer of the battalion, Lieutenant Harry Thrasher, a graduate of the Ecole des Beaux-Arts and a winner of the Prix de Rome, was killed while doing camouflage work at Fismes, as was Sergeant Everett Herter, a son of Albert Herter, the artist. Because of the exacting nature of its requirements, the Camouflage Service had, perhaps, a more highly educated enlisted personnel than any other organization in the army. Among the men wearing the uniforms of privates in the corps was the landscape-architect who laid out the grounds of the San Diego Exposition, the stage-manager for Maude Adams, the head property-man of the Universal Film Company, and Louis Tiffany’s chief designer. One of the instructors at the school was a successful osteopath who in his younger days had been a scene-painter; another was a sculptor whose statues may be seen in many American museums and parks. Figures are, as a rule, dry reading, but they provide the best means I know of giving some idea of the magnitude of our camofleurs’ operations. During the summer of 1918 the Camouflage Section used materials _per month_ as follows: 12,000 fish-nets. 50,000 pounds of wire. 700,000 gallons of paint. 2,160,000 square yards of poultry-netting and approximately 1,000 acres of burlap. The best and most concise rules which I have seen for the erection of camouflage and for the enforcement of camouflage discipline are contained in secret instructions issued in July, 1918, by the commander of the German First Army. They read as follows: CAMOUFLAGE Translation of a German Document (from French IV Army Bulletin, August 8, 1918) 1st Army Command of the Aviation Service Ia-Ib ARMY HEADQUARTERS, July 1, 1918. I. ESSENTIAL POINTS IN THE CONSTRUCTION OF POSITIONS. (_a_) _General._ 1. Camouflage will be completed before undertaking the work. 2. Camouflage will be sufficiently extensive in order that all the work required may be carried out under its protection.