Military observation balloons (captive and free)
Subtitle: a complete treatise on their manufacture, equipment, inspection, and handling, with special instructions for the training of a field balloon company
By: by Emil J. Widmer; 3 plates and 38 illustrations.
Publisher: D. Van Nostrand company
Published: 1917
Place of publication: New York
Language: eng
Number of pages: 151
Subjects: Balloons; Aerial observation (Military science)
Notes: "Based on the balloon manual of the German army." - Publisher's note.