training regulations Cavalry : the employment of machine guns / prep. under direction of the Chief of Cavalry - United States War Department Training Regulations TR 425-110 training regulations Cavalry : ceremonies and inspections / prep. under direction of the Chief of Cavalry - United States War Department Training Regulations TR 425-130 Field artillery : Automotive Instruction / prepared under the direction of the Chief of Field Artillery Tactics instruction memorandum : Tactical Aspects of Field Artillery Fire Direction Weapons (Marine Infantry Battalion) Gunnery instruction memorandum : Short Base Flash Ranging for Marine Field Artillery Gunnery instruction memorandum : Construction and Use of a Rapid Computer for Survey Traverses Materiel instruction memorandum : Sighting and laying equipment for field artillery materiel Materiel instruction memorandum : The Firing Battery 155mm Howitzer M1 Tactics instruction memorandum : Radio voice procedure for field artillery Logarithmic trigonometric and short-base tables Gunnery instruction memorandum : Use of Photomaps in Field Artillery Battalion Survey and Unobserved Fire