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  1. A damaged lead core barrel is positioned next to a new one. The old one was brought up from the Tonga Trench during the Capricorn Expedition (1952-1953). Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953)
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  2. Robert Floyd Dill shown here is adjusting an underwater camera during the Capricorn Expedition (1952-1953) on board the research vessel Spencer F. Baird (Ship). Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship); Dill, Robert Floyd, 1927-
    • Date: 1952
    • Topic: Underwater imaging systems; Oceanographic instruments; Cameras
    • Format: image
  3. Raft in distance at sea

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship)
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  4. Spec[ial] Dev[elopments] Equipment Baird-Transpac

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Transpac Expedition; Spencer F. Baird (Ship)
    • Date: 1953-07-22
    • Topic: Oceanographic instruments; Oceanographic research ships
    • Format: image
  5. [Neil Marshall preparing to deploy trawl at night]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Oceanographers; Scientific expeditions--Mexico; Oceanographic instruments; Trawls and trawling
    • Format: image
  6. [Oceanographers preparing trawl for deployment on deck]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Oceanographic instruments; Scientific expeditions--Mexico; Oceanographers; Trawls and trawling
    • Format: image
  7. [Oceanographers with trawl on deck]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Trawls and trawling; Oceanographic instruments; Scientific expeditions--Mexico; Oceanographers
    • Format: image
  8. A damaged lead core barrel is positioned next to a new one. The old one was brought up from the Tonga Trench during the Capricorn Expedition (1952-1953). Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953)
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  9. [Oceanographers preparing trawl for deployment at night]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Oceanographic instruments; Oceanographers; Scientific expeditions--Mexico; Trawls and trawling
    • Format: image
  10. Lowering of a core oceanographic instrument into the ocean at night is being done here, during the Scripps Institution of Oceanography Capricorn Expedition (1952-1953). Scientists studied the 35,400 foot deep Tonga Trench, the second deepest place in the ocean, and measured heat flow on the East Pacific Rise during this expedition. 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship)
    • Date: 1952
    • Topic: Oceanographers; Oceanographic instruments; Submarine geology
    • Format: image
  11. Willard N. Bascom, at left, readying instruments raft onboard R/V Spencer F. Baird. Bikini area. Capricorn Expedition, 1952

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Bascom, Willard N., 1916-
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  12. Engineer William C. King ("Buddy") stands behind the drum holding the R/V Spenser F. Baird's (ship) 40,000 foot tapered steel cable during the Scripps Institution of Oceanography Capricorn Expedition (1952-1953). 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); King, William C.
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  13. [Maxwell Silverman, center, and others with Peterson grab sampler]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship); Silverman, Maxwell
    • Date: 1959
    • Topic: Scientific expeditions--Mexico; Oceanographers; Oceanographic instruments; Dredges; Dredging (Biology)
    • Format: image
  14. [Oceanographers deploying trawl from A frame at night]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Oceanographers; Oceanographic instruments; Scientific expeditions--Mexico; Trawls and trawling
    • Format: image
  15. [Maxwell Silverman and another man deploying trawl from A frame at night]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Trawls and trawling; Scientific expeditions--Mexico; Oceanographic instruments; Oceanographers
    • Format: image
  16. Walter H. Munk (right) and two unidentified men lowering the camera into the water near Palmerston Island during the Capricorn Expedition (1952-1953). Palmerston Island is a coral atoll in the Cook Islands in the Pacific Ocean. Scientists studied the 35,400 foot deep Tonga Trench, the second deepest place in the ocean, and measured heat flow on the East Pacific Rise during this expedition. 1952.,Scripps Institution of Oceanography's very own Walter H. (Walter Heinrich) Munk (right) and two unidentified men lowering the camera into the water near Palmerston Island during the Capricorn Expedition (1952-1953). Palmerston Island is a coral atoll in the Cook Islands in the Pacific Ocean. Scientists studied the 35,400 foot deep Tonga Trench, the second deepest place in the ocean, and measured heat flow on the East Pacific Rise during this expedition. 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Munk, Walter H. (Walter Heinrich), 1917-
    • Date: 1952
    • Topic: Cameras; Oceanographic instruments; Underwater imaging systems
    • Format: image
  17. Ronald Mason with magnetometer, aboard the research vessel Spencer F. Baird (Ship) during the Capricorn Expedition (1952-1953), magnetometer is a scientific instrument used to measure the strength and/or direction of the magnetic field in the vicinity of the instrument. Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship); Mason, Ronald G.
    • Date: 1952
    • Topic: Magnetometer; Oceanographic instruments; Geomagnetism--Pacific Ocean
    • Format: image
  18. [Richard von Herzen with slide rule and heat probe]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959); Von Herzen, Richard P.
    • Date: 1959
    • Topic: Heat flow; Oceanographers; Scientific expeditions--Mexico; Oceanographic instruments
    • Format: image
  19. Lowering of a core oceanographic instrument into the ocean is being done here, during the Scripps Institution of Oceanography Capricorn Expedition (1952-1953). Scientists studied the 35,400 foot deep Tonga Trench, the second deepest place in the ocean, and measured heat flow on the East Pacific Rise during this expedition. 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953)
    • Date: 1952
    • Topic: Oceanographers; Submarine geology; Oceanographic instruments
    • Format: image
  20. [Oceanographers examine contents of trawl]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Scientific expeditions--Mexico; Trawls and trawling; Oceanographic instruments; Oceanographers
    • Format: image
  21. [Trawl presser foot suspendedl from A frame at night]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Oceanographic instruments; Oceanographers; Scientific expeditions--Mexico; Trawls and trawling
    • Format: image
  22. Theodore Robert Folsom (left) and Milton Nunn Bramlette shown here examine a water sampler during the Capricorn Expedition (1952-1953). Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Folsom, Theodore Robert, 1908-1989; Blumberg, Richard
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  23. [Man on deck with hydrophones]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Hydrophone; Oceanographic instruments; Scientific expeditions--Mexico
    • Format: image
  24. [Richard von Herzen with notebook and heat probe]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959); Von Herzen, Richard P.
    • Date: 1959
    • Topic: Oceanographers; Heat flow; Oceanographic instruments; Scientific expeditions--Mexico
    • Format: image
  25. [Deploying the Peterson grab sampler from bucket on deck of R/V Spencer F. Baird]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Oceanographic instruments; Marine sediments; Scientific expeditions--Mexico
    • Format: image
  26. Steaming the hydrophones in preparation for a seismic run

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship)
    • Date: 1952
    • Topic: Hydrophone; Oceanographic instruments
    • Format: image
  27. Alan Churchill Jones at the fathometer, a sonar depth finder, while on board the research vessel Spencer F. Baird, during the Capricorn Expedition. 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Jones, Alan Churchill, 1927-
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  28. [Peterson grab sampler on deck of R/V Spencer F. Baird]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Scientific expeditions--Mexico; Oceanographic instruments; Marine sediments
    • Format: image
  29. Walter H. Munk (left) and John D. Isaacs (far right) observing an oceanographic instrument during the Capricorn Expedition (1952-1953). At this point of the expedition they are somewhere between Eniwetok and Tonga in the Pacific. The expedition used scuba divers to explore the Pacific seafloor and studied the 35,400 foot deep Tonga Trench. 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Isaacs, John D. (John Dove); Munk, Walter H. (Walter Heinrich), 1917-
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  30. [Maxwell Silverman and oceanographers deploying trawl from A frame at night]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Trawls and trawling; Scientific expeditions--Mexico; Oceanographic instruments; Oceanographers
    • Format: image
  31. Spec[ial] Dev[elopments] Refrigeration Baird-Transpac

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Transpac Expedition; Spencer F. Baird (Ship)
    • Date: 1953-07-22
    • Topic: Oceanographic instruments; Oceanographic research ships--Interiors
    • Format: image
  32. Unloading sub. Cable

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Isaacs, John D. (John Dove)
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  33. [Two men deploying the Peterson grab sampler from bucket on deck of R/V Spencer F. Baird]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Oceanographic instruments; Scientific expeditions--Mexico; Marine sediments; Oceanographers
    • Format: image
  34. Theodore Robert Folsom (left) and Martin W. (Martin Wiggo) Johnson with a plankton net on board the research vessel Spencer F. Baird (Ship) during the Capricorn Expedition (1952-1953). Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship); Johnson, Martin W. (Martin Wiggo), 1893-1984; Folsom, Theodore Robert, 1908-1989
    • Date: 1952
    • Topic: Oceanographic instruments; Marine biology
    • Format: image
  35. [Oceanographer with plotter on R/V Spencer F. Baird]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Scientific expeditions--Mexico; Marine sediments; Sea-floor; Oceanographic instruments
    • Format: image
  36. Isaacs instrument, Bikini area

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953)
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  37. On the fantail of the R/V Spencer F. Baird (ship) during the Capricorn Expedition (1952-1953), a very bent coring tube lies across two wooden sawhorses, while assorted equipment litters the deck-coring apparatus, temperature probe (being sat upon), under-water camera, etc. 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship)
    • Date: 1952
    • Topic: Oceanographic research ships; Oceanographic instruments; Marine geology
    • Format: image
  38. [Deploying the Peterson grab sampler from bucket on deck of R/V Spencer F. Baird]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Oceanographic instruments; Scientific expeditions--Mexico; Marine sediments
    • Format: image
  39. Spec[ial] Dev[elopments] Pyroheliometer Baird-Transpac

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Transpac Expedition; Spencer F. Baird (Ship)
    • Date: 1953-07-22
    • Topic: Oceanographic instruments
    • Format: image
  40. (Left to right) Philip E. Jackson, Arthur Eugene Maxwell and Richard E. Blumberg on aboard R/V Spencer F. Baird (ship) while on the Capricorn Expedition (1952-1953). They are shown here lowering the heat probe which records temperatures at various depths of the bottom sediments. The heat probe was used for the first successful heat flow measurements of the seafloor during the Expedition. 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship); Maxwell, Arthur Eugene, 1925-; Jackson, Philip E.; Blumberg, Richard E.
    • Date: 1952
    • Topic: Oceanographic instruments; Oceanographic research ships; Marine geology
    • Format: image
  41. [Oceanographers deploying trawl from A frame at night]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Vermilion Sea Expedition (1959)
    • Date: 1959
    • Topic: Oceanographers; Trawls and trawling; Scientific expeditions--Mexico; Oceanographic instruments
    • Format: image
  42. William C. King is shown here at control panel of the big winch on board the research vessel Spencer F. Baird (Ship), during the Capricorn Expedition (1952-1953). Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); King, William C.
    • Date: 1952
    • Topic: Winches; Oceanographic instruments
    • Format: image
  43. Richard Blumberg and Ronald G. Mason shown here with a magnetometer during the Capricorn Expedition (1952-1953), a scientific instrument used to measure the strength and/or direction of the magnetic field in the vicinity of the instrument. Circa 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship); Mason, Ronald G.; Blumberg, Richard
    • Date: 1952
    • Topic: Oceanographic instruments; Magnetometer; Geomagnetism--Pacific Ocean
    • Format: image
  44. Feeding wire out, Bikini

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship)
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  45. John Dove Isaacs (left) feeding wire out with Willard Bascom (in center squatting down) looking back, in the Bikini area, onboard R/V Spencer F. Baird, Capricorn Expedition, 1952

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Isaacs, John D. (John Dove); Bascom, Willard N., 1916-
    • Date: 1952
    • Topic: Oceanographic instruments
    • Format: image
  46. [Recovering Peterson grab sampler]

    • Collection: SIO Photographs Collection
    • Name: Scripps Institution of Oceanography; Vermilion Sea Expedition (1959); Spencer F. Baird (Ship)
    • Date: 1959
    • Topic: Oceanographic instruments; Scientific expeditions--Mexico
    • Format: image
  47. Left to right: Robert Floyd Dill, Walter Heinrich Munk, Richard Blumberg preparing to lower a deep-sea camera enclosed in a watertight case into the ocean. Cut off from the top of this photo is the strobe unit in a similar turret above the camera, which supplies the light source for the camera. The flat disk at the very bottom of this devise is called the "shoe" which actually touches the sea-floor. This photo was taken during the Scripps Institution of Oceanography's Capricorn Expedition (1952-1953). 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Spencer F. Baird (Ship); Capricorn Expedition (1952-1953); Blumberg, Richard; Munk, Walter H. (Walter Heinrich), 1917-; Dill, Robert Floyd, 1927-
    • Date: 1952
    • Topic: Oceanographic instruments; Cameras
    • Format: image
  48. Roger Revelle and Jeffery Dean Frautschy gloating over the wire cable delivered to the research vessel Spencer F. Baird on the eve of the departure of the Scripps Institution of Oceanography's Capricorn Expedition (1952-1953). This was the first Scripps expedition to use scuba divers to explore the Pacific. Scientists mapped seamounts and guyots and other features of the Pacific seafloor. Scientists also studied the 35,400 foot deep Tonga Trench, the second deepest place in the ocean, and measured heat flow on the East Pacific Rise. October 25, 1952.

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Scripps Institution of Oceanography; Capricorn Expedition (1952-1953); Spencer F. Baird (Ship); Frautschy, Jeffery Dean; Revelle, Roger, 1909-1991
    • Date: 1952-10-25
    • Topic: Oceanographers; Oceanographic instruments
    • Format: image