Page
2 U. S. Navy (USN)
3 University of Pennsylvania Museum—National Geographic
Expedition
5 USN
6 Woods Hole Oceanographic Institution (WHOI)
7 Diagram, WHOI; photo, S. Hull
9 Top, Oregon State University (OSU); bottom, University of
California, San Diego, Scripps Institution of
Oceanography (SIO)
10 Lamont Geological Observatory of Columbia University
12 USN
15 SIO
19 R. H. Backus. _Physics Today_ (November 1965), “Sound
Reflections In and Under Oceans,” J. B. Hersey
20 U. S. Bureau of Commercial Fisheries Biological Laboratory,
Honolulu, Hawaii
22 USN
24 Laboratory of Radiation Biology, University of Washington
(LRB)
26 Jan Hahn
27 Franklin GNO Corporation
28 George D. Grice, WHOI
31 SIO
33 OSU
35 Monsanto Research Corporation
37 USN
38 Lane-Wells Company
39 Research Triangle Institute
43 USN
46, 47 & 48 Martin-Marietta Company
49 The Photo Mart
53 Top, Metropolitan Water District of Southern California;
bottom, Bechtel Corporation
55 U. S. Bureau of Commercial Fisheries, Fish and Wildlife
Service; inset, Brookhaven National Laboratory
56 Norsk Folkemuseum, Oslo, Norway, courtesy The Mariners
Museum, Newport News, Virginia
57 National Science Foundation
61 S. Hull
Cover photo courtesy James Butler, USN
Author’s photo courtesy General Dynamics Corporation
Frontispiece from Jan Hahn