field manual Defense against chemical attack technical regulations Fortification : underground water and its relation to fieldworks / prepared under direction of the Chief of Engineers technical regulations Fortification : camouflage for all arms / prepared under direction of the Chief of Engineers training regulations Field artillery : gunnery for field artillery / prepared under the direction of the Chief of Field Artillery technical bulletin / war department Plumbing and pipework Field service regulations United States Army 1913 / Office of the Chief of Staff, War Department war department technical manual Time Interval Apparatus EE-56,85 and 86-A, Line Connector unit EE87, Time Interval Signal BE-65 and Bell MC-153 war department technical manual Spotting set PH-32-B war department technical manual Power unit PE-201-A war department technical manual Power units PE-84, PE-84-A, PE-84-C, and PE-84-D war department technical manual Rotary Converters : 24-Volt D.C.-110-volt A.C. and 110-volt D.C.-110-volt A.C war department technical manual Property : repairs and utilities