When Glen Gustafson first encountered aerial photography, it was in the 1960s, and the US Air Force was training him in the highly specialized craft of aerial interpretation. His journey into the ...
"1st edition, August, 1930. 2nd edition, January, 1938." First edition produced for the infantry journal by the National service publishing co. under title: Map reconnaissance. siris_sil_59516 ...
THE interpretation of powder photographs, despite recent attempts at systematization 1–3, remains still largely an art, and any aids towards simplification are greatly to be welcomed. We have ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results