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  1. Hearings before the Subcommittee of the Committee on Appropriations, [United States] House of Representatives; Eighty-fifth Congress, First Session on the IGY [International Geophysical Year]

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: United States House of Representatives; Bush, Vannevar, 1890-1874; Revelle, Roger, 1909-1991
    • Date: 1957-05-01
    • Topic: United States. Congress. House--Committees; United States. Congress--Pictorial Works; International Geophysical Year, 1957-1958
    • Format: image
  2. Oceanographer Roger Revelle (extreme right) with other scientists at the Bikini Atoll encampment located in the Marshall Islands, during the Mid-Pac Expedition (1950). 1950.

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Morita, Richard Y.; Midpac Expedition (1950); Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanography--Field work (land); Bikini Atoll (Marshall Islands); Scientific expeditions
    • Format: image
  3. Pollywog (first time Equator crosser) Roger Revelle being initiated by King Neptune's Court during an Equator Crossing the Line ceremony. Capricorn Expedition, 1952

    • Collection: Edward Sheldon Barr Papers
    • Name: Barr, Edward Sheldon, 1933-; Capricorn Expedition (1952-1953); Revelle, Roger, 1909-1991
    • Date: 1952
    • Topic: Crossing the equator; Wit and humor--Pictorial
    • Format: image
  4. Robert Floyd Dill and Roger Revelle rigging a Kullenberg piston core sampler. Midpac Expedition, 1950

    • Collection: Edward Sheldon Barr Papers
    • Name: Scripps Institution of Oceanography; Horizon (Ship); Midpac Expedition (1950); Dill, Robert Floyd, 1927-; Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanographic instruments
    • Format: image
  5. Roger Revelle and his makeshift scale, shown here adjusting the balance arm for 1 gram, aboard R/V Spencer F. Baird (ship) while on the Capricorn Expedition (1952-1953). November 1952.

    • Collection: Edward Sheldon Barr Papers
    • Name: Barr, Edward Sheldon, 1933-; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Revelle, Roger, 1909-1991
    • Date: 1952-11
    • Topic: Weighing instruments; Scales (Weighing instruments)
    • Format: image
  6. Roger Revelle and Robert Dietz, co-chief scientists on the MidPac Expedition of 1950, discussing significance of lithified globigerina ooze dredged from western Pacific. The Cretaceous fossils enclosed indicated a much younger age than expected -- a mystery which remained unresolved until later explained by plate tectonics and continental drift. Shot 1 of 3

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991; Dietz, Robert S. (Robert Sinclair), 1914-
    • Date: 1951
    • Topic: Oceanographers; Submarine geology
    • Format: image
  7. Roger Revelle and Robert Dietz, co-chief scientists on the MidPac Expedition of 1950, discussing significance of lithified globigerina ooze dredged from western Pacific. The Cretaceous fossils enclosed indicated a much younger age than expected -- a mystery which remained unresolved until later explained by plate tectonics and continental drift. Shot 2 of 3

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991; Dietz, Robert S. (Robert Sinclair), 1914-
    • Date: 1951
    • Topic: Oceanographers; Submarine geology
    • Format: image
  8. Roger Revelle and Robert Dietz, co-chief scientists on the MidPac Expedition of 1950, discussing significance of lithified globigerina ooze dredged from western Pacific. The Cretaceous fossils enclosed indicated a much younger age than expected -- a mystery which remained unresolved until later explained by plate tectonics and continental drift. Shot 3 of 3

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991; Dietz, Robert S. (Robert Sinclair), 1914-
    • Date: 1950
    • Topic: Oceanographers; Submarine geology
    • Format: image
  9. Roger Revelle, James Snodgrass, and Arthur Maxwell on deck of R/V HORIZON recover the temperature gradient recorder that measures geothermal gradients in the sea floor

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Morita, Richard Y.; Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991; Maxwell, Arthur Eugene, 1925-; Snodgrass, James Marion, 1908-1994
    • Date: 1950
    • Topic: Heat flow; Oceanographic instruments; Oceanography
    • Format: image
  10. Scientists on deck of R/V HORIZON. Standing, rear: Edward Barr, Louis Garrison, Jeffery Frautschy, Arthur Maxwell, James Snodgrass. Middle row: Bob Dill, K.O. Emery and Russell Raitt. Front row: Bob Huffer, Tom Runyon, Ed Brayton, Ed Hamilton, and Roger Revelle. Richard Morita seated at front.

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Morita, Richard Y.; Midpac Expedition (1950); Huffer, Robert; Barr, Edward Sheldon, 1933-; Revelle, Roger, 1909-1991; Brayton, Ed; Maxwell, Arthur Eugene, 1925-; Raitt, Russell W.; Frautschy, Jeffery Dean; Snodgrass, James Marion, 1908-1994; Dill, Robert Flooyd, 1927-; Hamilton, Edwin L. (Edwin Lee), 1914-; Runyon, Thomas; Emery, Kennis O. (Kenneth Orris), 1914-; Garrison, Louis
    • Date: 1950
    • Topic: Oceanography--Field work (land); Bikini Atoll (Marshall Islands); Scientific expeditions
    • Format: image
  11. September 24, Bringing supplies ashore to set up camp "Little Petunia", Bikini Atoll. Left to right (foreground) Russell Raitt, Dick Morita, Roger Revelle, Tom Chapman (background) Deane Carlson, Edward Barr

    • Collection: Edward Sheldon Barr Papers
    • Name: Barr, Edward Sheldon, 1933-; Midpac Expedition (1950); Horizon (Ship); Barr, Edward Sheldon, 1933-; Chapman, Tom; Carlson, Dean; Revelle, Roger, 1909-1991; Raitt, Russell W.; Morita, Richard Y.
    • Date: 1950-09-24
    • Topic: Lifeboats; Oceanography--Field work (land)
    • Format: image
  12. University of California Regent Donald H. McLaughlin and Roger Revelle examine map of proposed site of University of California campus at San Diego. 1959

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; McLaughlin, Donald H.; Revelle, Roger, 1909-1991
    • Date: 1959
    • Topic: University of California, San Diego--History; University of California, San Diego--Planning
    • Format: image
  13. Action to: Dr. Rakestraw

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Revelle, Roger, 1909-1991; Midpac Expedition (1950); Horizon (Ship); Rakestraw, Norris W. (Norris Watson), 1895-1982; Revelle, Roger, 1909-1991
    • Date: 1950-08-21
    • Topic: Scientific expeditions--Pacific Ocean; Oceanography--Research-- North Pacific Ocean; Hawaii
    • Format: image
  14. Letter to Allyn C. Vine and Beauregard Perkins with enclosure

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Revelle, Roger, 1909-1991; Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991; Vine, Allyn C.; Perkins, Beauregard
    • Date: 1950-01-09
    • Topic: San Diego (Calif.); MidPac Expedition; Oceanographic research ships; United States. Office of Naval Research
    • Format: image
  15. Letter to Roger Revelle

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Ladd, Harry Stephen, 1899-; Horizon (Ship); Midpac Expedition (1950); Emery, K.O. (Kenneth Orris), 1914-; Revelle, Roger, 1909-1991; Ladd, Harry Stephen, 1899-
    • Date: 1950-10-09
    • Topic: MidPac Expedition; Marshall Islands--Bikini Atoll; Washington (D.C.)
    • Format: image
  16. Memorandum to All Hands

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Revelle, Roger, 1909-1991; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Revelle, Roger, 1909-1991
    • Date: 1952-10-16
    • Topic: Oceanography--Research-- North Pacific Ocean; San Diego (Calif.); Scientific expeditions--Pacific Ocean
    • Format: image
  17. Memorandum to Distribution List

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Dietz, Robert S. (Robert Sinclair), 1914-; Revelle, Roger, 1909-1991; Horizon (Ship); Midpac Expedition (1950); Dietz, Robert S. (Robert Sinclair), 1914-; Revelle, Roger, 1909-1991
    • Date: 1950-06-08
    • Topic: MidPac Expedition; U.S. Navy Electronics Laboratory (San Diego, Calif.); San Diego (Calif.)
    • Format: image
  18. Memorandum to Roger Revelle

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Dietz, Robert S. (Robert Sinclair), 1914-; Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991; Dietz, Robert S. (Robert Sinclair), 1914-
    • Date: 1950-06-07
    • Topic: MidPac Expedition; San Diego (Calif.); Seamounts; U.S. Navy Electronics Laboratory (San Diego, Calif.)
    • Format: image
  19. Memorandum] To: Dr. Norris W. Rakestra

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Revelle, Roger, 1909-1991; Midpac Expedition (1950); Horizon (Ship); Rakestraw, Norris W. (Norris Watson), 1895-1982; Revelle, Roger, 1909-1991
    • Date: 1950-08-29
    • Topic: Pearl Harbor (Hawaii); Scientific expeditions--Pacific Ocean; Oceanography--Research-- North Pacific Ocean
    • Format: image
  20. MidPac Operations Plan 21/23 September 1950

    • Collection: Scripps Institution of Oceanography Letters, Clippings, Ships' Logs
    • Name: Revelle, Roger, 1909-1991; Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991
    • Date: 1950-09-21
    • Topic: Drill cores; Submarine geology; Bikini Atoll; Marine biology; Oceanographic instruments; Oceanography; Hydrophone
    • Format: image