Army ground forces : light aviation - USA War Department Field Manual, FM 20-100 Equipment, clothing, and tent pitching - USA Basic Field Manual, FM 21-15 Service of the piece : 155-mm gun M 1 - USA Field Artillery Field Manual, FM 6-90 Field service regulations : operations - USA Field Manual, FM 100-5 Individual clothing and equipment - USA Field Manual, FM 21-15 First aid for soldiers - USA Basic Field Manual, FM 21-11 field manual Infantry drill regulations / prepared under direction of the Chief of Infantry Antiaircraft artillery : gunnery, fire control, position finding and horizontal fire, case I firing. - USA Coast Artillery Field Manual, FM 4-112 Service of the piece 105-mm Howitzer, M 2, truck-drawn - USA Field Artillery Field Manual, FM 6-75 Service of the piece 8-inch Howitzer M 1 - USA Field Artillery Field Manual, FM 6-91 Field artillery : tactics and technique of division artillery and higher artillery echelons - USA War Department Field Manual, FM 6-100 Photomail operation - USA War Department Field Manual, FM 11-150