training regulations Chemical warfare service / War Department : Drill, the chemical squad, platoon and company (4-inch and 4.2-inch chemical mortar) / War Department army regulations. military school Chemical warfare service / War Department : Chemical warfare board / War Department army regulations. military school Chemical warfare service / War Department : General provisions / War Department army regulations. military school Chemical warfare service / War Department : General provisions / War Department training regulations Weapons / War Department : Browning tank machine gun, caliber .30, model of 1919 / War Department Battery charging set, type SCR-82 Telephone switchbord, type BD-14 Reel unit RL-26 Army extension courses. Special text : Administration / prep. under the dir. of the Adjutant General for use with the Army Extension Courses Army extension courses. Special text : Mess management / prep. under the dir. of the Quartermaster General for use with the Army Extension Courses Army extension courses. Special text : Defensive combat and organization of the ground / prep. under the dir. of the Chief of Infantry for use … Army extension courses. Special text : Defensive combat and organization of the ground / prep. under the dir. of the Chief of Infantry for use …