Artillery Training Pamphlet. no.5. Survey. Volume VI. General Principles and Practice of Sound Ranging, WO 7311 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 of artillery instrument. Pamphlet no.13. Carrier Link, Sound Ranging. WO 7341 Directions for the use of artillery instrument. Pamphlet no.14. Sound Ranging Equipment, Misellaneous, WO 7034
