Army extension courses. Special text : Combat principles, the Cavalry rifle squad and platoon, mounted and dismounted / prep. under the dir. of the Chief … Army extension courses. Special text : Transportation : rail / prep. under the dir. of the Quartermaster General for use with the Extension Course of … Army extension courses. Special text : Signal communication for all arms and services / prep. under the dir. of the Chief Signal Officer for use … Physical training : General : without special equipment / War Department manual Regulations for United States military telegraph lines / U.S. Signal Corps war department technical manual Military pipe-line systems field manual Military training / prepared under direction of the Chief of Staff field manual Conventional signs, military symbols, and abbreviations / War Department war department field manual 27-5. navy department op nav 50 e-3 United States army and navy manual of military government and civil affairs : 22 December, 1943 field manual Military police / prepared under direction of the chief of infantry in collaboration with the assistant chief of staff, G-3 field manual Military intelligence : identification of U.S. amored vehicles ; prepared under direction of the Chief of Staff Technical regulations. Ordnance maintenance - Mobile artillery