Sessions two and three of a three-part interview. Administrator at University of Minnesota; his philosophy of education; exploitation of the ocean, state of marine science. World War II, observing weather in China; travels; choosing German scientists for U.S.; Pacific Science Conference; Office of Scientific Research and Development, directs first military A-bomb tests. Back to Minnesota, 1951; consultant; Baker Mission, Korea, 1952; UNESCO, 1954-1958, Aswan Dam, International Geophysical Year; the space race; serves as U.S. Commissioner of Seattle World's Fair, 1961-1962. Aquaculture, the Sea Grant bill, 1963; environmental concerns; the experimental city; director Franklin Institute, Philadelphia; appointed to Woodrow Wilson National Center; special assistant at National Oceanic and Atmospheric Administration (Robert White); the present direction of oceanography. Influential people; early computers; the U.S. Weather Bureau; inventions and patents; monitoring Soviet A-bomb tests, 1948-1949; technology, business, the military, and the future.