Directions for the use of artillery instruments. Pamphlet no.3. The Slide Rule, 1937. WO 7332 Directions of the use Artillery Instrument. Pamphlet no.8. The Comparator, Sound Ranging. WO 7336 Directions for the use of artillerie instruments Pamphlet no.9. Recorder, Sound Ranging, no.1, Marks II, III, and IV. WO 7337 Directions for the use artillery instruments. Pamphlet no.11.The Twin Marchant Calculating Machine, WO 7339 Directions for the use of artillery instrument. Pamphlet no.13. Carrier Link, Sound Ranging. WO 7341 Regulation for the equipment of the army. Part 2. Section 1 a. Mounted Infantery. (1) Home. War Only. (2) Battalions in Sout Africa. (3) Schools … Handbook of Mine Detectors. Part IV. The no. 4 Detector. WO 903 Army Training Memorandum no. 45 Army Training Memorandum no. 52 Gas Training. 1951. WO 8511 Field Service Pocket Book Part II. Pamphlet 4 A. Staff Organization and Staff Duties in US Army. WO 7171 Administration in the field. Administration within the division. WO 8690