Jacobsen, Charles W.; Willett, James F.; Anderson, Delmer P.; Sachs, Edward I.; Smith, Hiram C.; Walsh, James E.; Forwood, William G.; Purcell, William W. R.
"This manual presents the details of construction, use, and maintenance of land sites for low altitude barrage balloons. Rigging of the bed is described for securing low-altitude barrage balloons by bedding down, tail-line mooring, mooring-cirlce...
The Artillery Information Service has available for the location of new enemy batteries and for the identification of old ones (a) aerial observation by airplane, (b) aerial observation by captive balloons, (c) terrestrial observation by (1) the...