Topographical drawing and sketching : including applications of photography (1888)
Reed, Henry A. (Henry Albert), 1844-1930 author · New York : John Wiley & Sons, 15 Astor Place · leaf 272
med for it, as compared with ordinary surveying instruments, are the certainty with which a tour may be closed, and errors of arc-reading thus ob- viated; the great rapidity of execution; its simplicity of manipulation, which enables a novice to produce practically perfect views; and, as with all… … is based upon the idea — due Fig. 47. to Capt. Prudent — that virtual images produced by a spherical convex reflector, might be photographed so as to represent the original objects in their true proportions. I. The Metallic Reflector.— Col. Mangin solved the problem, by first constructing a…
Topographical drawing · Photographic surveying
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
