Materiel instruction memorandum : Duties of the Safety Officer Gunnery instruction memorandum : Conduct of Fire by Forward Observation Methods Gunnery instruction memorandum : Use of Oblique Photographs in Firing Gunnery instruction memorandum : Time Fire Using Shell Fuzed With Fuze M54 of M55 Meteorology for marine field artillery Tactics instruction memorandum : Local security and defense of field artillery Materiel instruction memorandum : Instructions for Semi-Annual (6,000 Mile) Maintenance Service Gunnery instruction memorandum : Technique of Fire Direction Materiel instruction memorandum : Maintenance of Field Artillery Materiel Tactics instruction memorandum : Field artillery observation Materiel instruction memorandum : The Firing Battery 75mm Pack Howitzer, M-1 Materiel instruction memorandum : The Firing Battery 155mm Gun M1
