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  1. [Roger Revelle on aft deck, R/V HORIZON deploying temperature probe]

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Dill, Robert Floyd, 1927-; Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanographic instruments; Heat flow
    • Format: image
  2. Bikini Encampment: Standing (L to R): unidentified, Robert Dill?, Roger Revelle, unidentified, Edwin Hamilton; Seated (L to R): Jeffery Frautschy, Robert Dietz, H. William Menard, K.O. Emery and Unidentified. Midpac Expedition, 1950

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Morita, Richard Y.; Midpac Expedition (1950); Horizon (Ship); Emery, Kenneth O. (Kenneth Orris), 1914-; Dietz, Robert S. (Robert Sinclair), 1914-; Menard, Henry W. (Henry William), 1920-1986; Frautschy, Jeffery Dean; Revelle, Roger, 1909-1991; Hamilton, Edwin L. (Edwin Lee), 1914-; Dill, Robert Floyd, 1927-
    • Date: 1950
    • Topic: Oceanography--Field work (land); Oceanographers
    • Format: image
  3. Bikini Encampment: Standing (L to R): unidentified, Robert Dill?, Roger Revelle, unidentified, Edwin Hamilton; Seated (L to R): Jeffery Frautschy, Robert Dietz, H. William Menard, K.O. Emery and Unidentified. Midpac Expedition, 1950

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Morita, Richard Y.; Midpac Expedition (1950); Horizon (Ship); Dietz, Robert S. (Robert Sinclair), 1914-; Menard, Henry W. (Henry William), 1920-1986; Hamilton, Edwin L. (Edwin Lee), 1914-; Dill, Robert Floyd, 1927-; Emery, Kenneth O. (Kenneth Orris), 1914-; Frautschy, Jeffery Dean; Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanography--Field work (land); Oceanographers
    • Format: image
  4. Dill [Roger Revelle on aft deck, R/V HORIZON deploying temperature probe]

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Dill, Robert Floyd, 1927-; Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Heat flow; Oceanographic instruments
    • Format: image
  5. Dr. Revelle's Rocks

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991
    • Date: 1950-09
    • Topic: Dredging; Submarine geology
    • Format: image
  6. Dr. Revelle's Rocks, fossil material Mid-Pacific mountains

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991
    • Date: 1950-09
    • Topic: Submarine geology; Dredging
    • Format: image
  7. Dr. Revelle's Rocks, manganese nodule MidPac

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991
    • Date: 1950-09
    • Topic: Dredging; Submarine geology; Manganese Nodules
    • Format: image
  8. Dr. Revelle's Rocks, material dredged up on MidPac

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991
    • Date: 1950-09
    • Topic: Submarine geology; Dredging
    • Format: image
  9. Dr. Revelle's Rocks, snail shells - taken from guyots - Mid-Pac Mts. NB 4975

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991
    • Date: 1950-09
    • Topic: Submarine geology; Shells--South Pacific Ocean; Dredging
    • Format: image
  10. Fantail of R/V Horizon, MidPac Expedition, 1950: Back: James Marion Snodgrass, Arthur E. Maxwell, Jeffery Frautschy, Lew Garrison, Ned Barr; Front: Russell Raitt, Kenneth O. Emery, Robert Floyd Dill, Roger Revelle, Edwin L. Hamilton, Ed Brayton, Tom Runyon, Bob Huffer; Richard Y. Morita squatting in front.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Midpac Expedition (1950); Horizon (Ship); Emery, K. O. (Kenneth Orris), 1914-; Garrison, Lew; Hamilton, Edwin L. (Edwin Lee), 1914-; Morita, Richard Y.; Raitt, Russell W.; Snodgrass, James Marion, 1908-1994; Revelle, Roger, 1909-1991; Barr, Edward Sheldon, 1933-; Dill, Robert Floyd, 1927-; Frautschy, Jeffery Dean; Maxwell, Arthur Eugene, 1925-
    • Date: 1950
    • Topic: MidPac Expedition; Oceanographers
    • Format: image
  11. Isaacs, Revelle, Menard discuss plan for the day, R/V HORIZON

    • Collection: Edward Sheldon Barr Papers
    • Name: Barr, Edward Sheldon, 1933-; Horizon (Ship); Midpac Expedition (1950); Menard, Henry W. (Henry William), 1920-1986; Isaacs, John D. (John Dove); Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanographers
    • Format: image
  12. Jeff [Scientists on deck of R/V HORIZON. Rear, standing:] Ed Barr, Louis Garrison, Jeffery Frautschy, Arthur Maxwell, James Snodgrass. Middle row: Bob Dill, K.O. Emery, Russell Raitt. Front row: Bob Huffer, Tom Runyon, Ed Brayton, Edwin Hamilton, Roger Revelle. Dick Morita is seated in the foreground.

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Frautschy, Jeffery Dean; Horizon (Ship); Midpac Expedition (1950); Hamilton, Edwin L. (Edwin Lee), 1914-; Runyon, Thomas; Morita, Richard Y.; Revelle, Roger, 1909-1991; Raitt, Russell W.; Frautschy, Jeffery Dean; Brayton, Edward; Emery, K.O. (Kenneth Orris), 1914-; Maxwell, Arthur Eugene, 1925-; Dill, Robert Floyd, 1927-; Snodgrass, James Marion, 1908-1994; Huffer, Robert; Garrison, Louis; Barr, Edward Sheldon, 1933
    • Date: 1950
    • Topic: Oceanographers
    • Format: image
  13. Jim Snodgrass and Roger Revelle handling a probe off the side of R/V Horizon

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991; Snodgrass, James Marion, 1908-1994
    • Date: 1950-09
    • Topic: Heat flow; Oceanographic instruments
    • Format: image
  14. Midpac Expedition scientific party at Bikini. Front row: Jeffery Frautschy, Robert Dietz, H. William Menard, Kenneth O. Emery, unidentified; Back row: unidentified, Robert Dill, Roger Revelle, unidentified, Ed Hamilton. 1950

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Morita, Richard Y.; Horizon (Ship); Midpac Expedition (1950); Revelle, Roger, 1909-1991; Frautschy, Jeffery Dean; Emery, K.O. (Kenneth Orris), 1914-; Dill, Robert Floyd, 1927-; Menard, Henry W. (Henry William), 1920-1986; Dietz, Robert S. (Robert Sinclair), 1914-
    • Date: 1950
    • Topic: Bikini Atoll (Marshall Islands); Oceanographers
    • Format: image
  15. Milton Bramlette and Roger Revelle examine sections of a recently recovered Kullenberg core

    • Collection: Edward Sheldon Barr Papers
    • Name: Barr, Edward Sheldon, 1933-; Horizon (Ship); Capricorn Expedition (1952-1953); Bramlette, Milton Nunn, 1896-1977; Revelle, Roger, 1909-1991
    • Date: 1952-12
    • Topic: Drill cores
    • Format: image
  16. Oceanographers Jeffery Dean Frautschy; Robert S. (Robert Sinclair) Dietz; Roger Revelle; and K.O. (Kenneth Orris) Emery bringing in a dredge haul aboard the R/V Horizon during the Midpac Expedition (1950). This expedition involved Scripps Institution of Oceanography and the U.S. Navy which discovered the Mid-Pacific Mountain Range on the bottom of the Pacific Ocean and confirmed Darwin's theory about the origin of atolls. 1950.

    • Collection: Roger Revelle Papers; Scripps Institution of Oceanography Photographs
    • Name: Dill, Robert Floyd, 1927-; Horizon (Ship); Midpac Expedition (1950); Frautschy, Jeffery Dean; Dietz, Robert S. (Robert Sinclair), 1914-; Emery, K.O. (Kenneth Orris), 1914-; Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Dredges
    • Format: image
  17. Oceanographers Roger Revelle and John D. (John Dove) Isaacs on the dock discussing the research work that they will be doing for the Midpac Expedition (1950). This expedition involved Scripps Institution of Oceanography and the U.S. Navy which discovered the Mid-Pacific Mountain Range on the bottom of the Pacific Ocean and confirmed Darwin's theory about the origin of atolls. Scientists were surprised to find that the seafloor was young, deep and rocky, not flat, old and filled with sediments. Measurements of continental heat flow from the ocean raised questions about the history of the Pacific Ocean basin that were later answered by Plate Tectonics theory. 1950.

    • Collection: Edward Sheldon Barr Papers
    • Name: Barr, Edward Sheldon, 1933-; Midpac Expedition (1950); Horizon (Ship); Isaacs, John D. (John Dove); Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanographers
    • Format: image
  18. R.W. Raitt. MidPac - Horizon - seismic station

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Midpac Expedition (1950); Horizon (Ship); Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanography
    • Format: image
  19. Researchers on Scripps Institution's first post war expedition into the Pacific Ocean, Operation MidPac in 1950, checking the contents of a dredge haul. Then Acting Director Roger Revelle is in left foreground. L to R: Roger Revelle, Bob Dietz, Ed Hamilton, Ken Emery, Bob Dill, Dana Carlson.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Horizon (Ship); Midpac Expedition (1950); Dill, Robert Floyd, 1927-; Carlson, Dean; Emery, K. O. (Kenneth Orris), 1914-; Hamilton, Edwin L. (Edwin Lee), 1914-; Dietz, Robert S. (Robert Sinclair), 1914-; Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Oceanographers; Marine mineral resources; Submarine geology
    • Format: image
  20. Robert Dill, Roger Revelle and group swimming off the side of the research vessel Horizon during the MidPac Expedition (1950). 1950.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Morita, Richard Y.; Horizon (Ship); Midpac Expedition (1950); Dill, Robert Floyd, 1927-; Revelle, Roger, 1909-1991
    • Date: 1950
    • Topic: Swimmers; Oceanographers
    • Format: image