Paperback. Condition: Good. First Edition. Features: The Aviaries of Edward Marshall Boehm; Nomads of the Gabra - wanderers of the wasteland; Photogrammetry Breakthrough - formulas bring honors to an amateur, John P. Snyder; The Space Oblique Mercator Projection; Marine fish in a Freshwater Lake - the enigma of Lake Nicaragua; Photos of rock carvings by Harrison Forman; Sonic Exploration for Subterranean Resources - seismic reflections probe the earth; Ankh linked to Supernova - ancient Egyptian symbol records astronomical event; The Wrangel Island Affair - Vilhalmur Stefansson's expedition; Pampas, Gulls and Gauchos - life on the Argentine Plain. Average wear. Unmarked. A sound copy.