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![]() Date: 2012-07-05 16:59:49Hydrography Cartography U.S. National Geodetic Survey Carlile Pollock Patterson Ferdinand Rudolph Hassler Hydrographic office President of the American Association for the Advancement of Science USC&GS Hilgard Ernest Hilgard Julius Erasmus Hilgard Science and technology in the United States Eugene W. Hilgard | Add to Reading List |
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