"Flash and sound ranging have now an established status in our military organizaiton. Besides serving the artillery both systems are able to supply valuable infomration to the Intelligence Sections of the General Staff in operations."
The Drill Regulations for Coast Artillery, United States Army, prepared by the Board on the Regulation of Coast Artillery Fire,are published for the information and government of the Army. To insure uniformity throughout the Army, all coast...
Containing instructions on the methods of laying out, constructing, defending, and attacking intrenchments, with the general outlines also of the arrangement, the attack and defence of permanent fortifications.
This manual is published for the information and guidance of all concerned. The following books, pamphlets, and paper have
been freely used:
British army publications
drill regulations, 6" Newton,
notes on aerial photography,
artillery notes no.6,...