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 field manual Criminal investigation manual Electrical instruments and telephones of the U.S. signal corps : revised 1910 Technical regulations : the buzzerphone, type EE-1-A Field service regulations : operations / prepared under direction of the chief of staff - USA Voorschrift, Field Manual 100-5 field manual Field service regulations : administration / prepared under direction of the chief of staff war department technical manual Materials for protective concealment war department technical manual Outboard motors war department technical manual Engineer maintenance troops war department technical manual Barracks, portable, sectional, all wood, insulated : procedure for erecting