15. Sanitation.--A. The importance of strict attention to sanitation will be impressed upon all ranks. B. The commanding officer of each unit is responsible for sanitation in his sector. He will make frequent inspections of latrines, refuse pits and trenches to ascertain that no unsanitary conditions exist. C. Latrines will be constructed in the trenches, excreta kept covered at all times and such disinfectants as may be provided will be used at regular intervals. When filled within eighteen inches of the top, pits will be filled with earth and labeled. D. Urinal cans will be provided and men required to use these cans and contents will be emptied as often as necessary into deep pits at least one hundred yards from the trenches. Empty tin cans, particles of food and other refuse will be collected in receptacles kept in the trenches for that purpose and carried to the rear and buried in pits. This is usually done at night. Emergency Dumps for Companies (Material). 1. Any large shell crater will do for these or holes can be dug 10' x 10,' x 5' deep. CONTENTS OF DUMP. 10 rolls barbed wire. 8 coils French accordion wire. 30 long screw stakes. 50 short screw stakes. 4 prepared wire blocks (gooseberries). STORES FOR COMPANY. 100 very flares. 6 S.O.S. rockets. 2 verminal sprayers. 1 strombos horn. (gas alarm) rubber boots. periscopes. 200 revolver ammunition. 1 log book. 1 set maps. 1 set air photos. 1 defense scheme. 2. These are taken over and signed for. Each dugout must have a gas blanket and some form of gas alarm (usually empty shell case.) STORES AT BATTALION HEADQUARTERS. 1 strombos horn. 2 verminal sprayers. 300 very flares. 20 S.O.S. rockets. 500 revolver ammunition. 50 ground flares. [Illustration: Plate #28] Conclusion. The present army of the United States had its inception at Plattsburg in 1915. The first regiment of the Business Mens' Training Camp will go down in history as the first chapter of preparedness. The training camps of 1916, not only at Plattsburg, but at various other places throughout the United States, constituted the second chapter. We are just finishing chapter three in the officers' training camps of 1917. This book brings together the essential points of the instruction given at the second and probably the last of the officers' training camps at Plattsburg, in such a way that an officer may refresh his memory when he is about to take up with his men any of the subjects covered. It is hardly necessary to add that no attempt has been made to cover fully any branch of the work. The bibliography provides for further study and the books in it should be at every officer's command. As the war progresses many changes will be made; not only will methods change but some branches now considered essential may be cast aside as useless.