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Seller: Wonder Book, Frederick, MD, U.S.A.
Condition: Very Good. Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included. Seller Inventory # N10C-03346
Quantity: 1 available
Seller: 100POCKETS, Berkeley, CA, U.S.A.
Soft cover. Condition: Near Fine. First Edition, 2nd Impression. PAPERBACK. Text/BRAND NEW, and Bright. Illustrated soft cover/NF w/trace rubs to leading edges. A scientific adventure first published 1961 in hardcover; this is the 1962 2nd Printing in paperback format. Published w/o ISBN; ISBN subsequently assigned. Search to understand how the bottlenose dolphin (or porpoise; a small toothed whale sporting a low triangular dorsal fin and a blunt rounded snout) navigates in the ocean in darkess, and sometimes turbid waters, without the use of vision, smell, taste, or touch and yet be able to circumvent submerged obstacles and locate fish for food. Sponsored & supported by the Office of Naval Research and the Nat'l Science Foundation, the study is an excellent example of coordination between many differing arms of research. Supported by photos, text in 11 chapters: 1, Whales & Porpoises; 2, The Amazing Dolphin; 3, Sounds Beneath the Sea; 4, Indications of Porpoise Sonar; 5, The Nature of the Signal; 6, The Acoustic Analyzer; 7, Perception of Submerged Targets; 8, Distinguishing Between Objects; 9, The Avoidance of Invisible Barriers; 10, A Porpoise Obstacle Course; and, 11, Conclusion. Fine copy. Seller Inventory # 005953
Quantity: 1 available
Seller: PsychoBabel & Skoob Books, Didcot, United Kingdom
Paperback. Condition: Good. Paperback, in good condition. Shelf wear; light scuffs and fading, with creasing and wear to edges, notably the spine. Page block foxed, leading onto inside covers and end papers. Internally, pages are well bound, and diagrams, photopgraphs and text are clean and clear. CN. Used. Seller Inventory # 536220
Quantity: 1 available