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  1. Meter net. Wire is be let out over shive. Inclinometer shows angle.

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952-08-11
    • Topic: Scientific expeditions; Nets; Oceanographic instruments; Wire rope
    • Format: image
  2. Trawl in the water

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952-08-17
    • Topic: Trawls and trawling; Scientific expeditions; Oceanographers; Oceanographic instruments
    • Format: image
  3. Bathythermograph winch and boom. Onboard Horizon during Shellback Expedition, August 22, 1952

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952-08-22
    • Topic: Winches; Oceanographic instruments; Bathythermograph
    • Format: image
  4. Radiosonde and balloon

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952-08-21
    • Topic: Oceanographic instruments; Scientific expeditions; Radiosondes; Meteorology--Observations
    • Format: image
  5. [John Knauss and crewmen with oceanographic instrument aboard R/V HORIZON]

    • Collection: SIO Photographs Collection
    • Name: Shellback Expedition, 1952; Horizon (Ship); Knauss, John Atkinson
    • Date: 1952
    • Topic: Oceanographic research ships; Scientific expeditions; Oceanography; Oceanographic instruments
    • Format: image
  6. The net cup

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship); Berner, Leo De Witte
    • Date: 1952-08-11
    • Topic: Copepoda; Euphausiacea; Marine biology; Nets; Oceanographic instruments
    • Format: image
  7. [Men with oceanographic instrument aboard R/V HORIZON]

    • Collection: SIO Photographs Collection
    • Name: Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952
    • Topic: Oceanographic instruments; Oceanography; Oceanographic research ships; Scientific expeditions
    • Format: image
  8. Bathythermograph (BT) using during Shellback Expedition, August 22, 1952

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Horizon (Ship); Shellback Expedition, 1952
    • Date: 1952-08-22
    • Topic: Oceanographic instruments; Bathythermograph
    • Format: image
  9. Ekman type current meter

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952-08-17
    • Topic: Oceanographic instruments; Scientific expeditions; Current meters
    • Format: image
  10. [John Knauss with oceanographic instrument aboard R/V HORIZON]

    • Collection: SIO Photographs Collection
    • Name: Shellback Expedition, 1952; Horizon (Ship); Knauss, John Atkinson
    • Date: 1952
    • Topic: Oceanographic research ships; Oceanography; Oceanographic instruments; Scientific expeditions
    • Format: image
  11. The messenger is attached [to Nansen bottle]

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Horizon (Ship); Shellback Expedition, 1952
    • Date: 1952-08-11
    • Topic: Scientific expeditions; Oceanographic instruments
    • Format: image
  12. Mount for current meter

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship); Wooster, Warren S. (Warren Scriver), 1921-
    • Date: 1952-08-17
    • Topic: Oceanographers; Oceanographic instruments; Current meters; Scientific expeditions
    • Format: image
  13. [John Knauss with oceanographic instrument aboard R/V HORIZON]

    • Collection: SIO Photographs Collection
    • Name: Horizon (Ship); Shellback Expedition, 1952; Knauss, John Atkinson
    • Date: 1952
    • Topic: Oceanographic instruments; Scientific expeditions; Oceanographic research ships; Oceanography
    • Format: image
  14. [Detail of winch, R/V HORIZON]

    • Collection: SIO Photographs Collection
    • Name: Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952
    • Topic: Winches; Oceanographic instruments; Scientific expeditions
    • Format: image
  15. Bob Gilkey shows Nansen bottle and reversing therm[ometer]

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship); Gilkey, Robert
    • Date: 1952-08-11
    • Topic: Thermometers; Seawater; Oceanographic instruments
    • Format: image
  16. Sheepshead caught while we anchored in Wreck Bay Ecuadorian Survey scene, Meter net drying

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952-08-08
    • Topic: Nets; Oceanographic instruments; Oceanography--Ecuador; Fishes; Scientific expeditions--Ecuador
    • Format: image
  17. Hydrographic winch and operator

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Shellback Expedition, 1952; Horizon (Ship)
    • Date: 1952-08-11
    • Topic: Winches; Scientific expeditions; Oceanographic instruments
    • Format: image
  18. Lower winch is in use for net tow. Upper is for GEK

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Horizon (Ship); Shellback Expedition, 1952; Knauss, John Atkinson
    • Date: 1952-08-11
    • Topic: Oceanographic instruments; Winches; Wire rope
    • Format: image
  19. Berner shows 17cm. Net for vertical hauls

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Horizon (Ship); Shellback Expedition, 1952; Berner, Leo De Witte
    • Date: 1952-08-17
    • Topic: Nets; Scientific expeditions; Oceanographic instruments; Oceanographers
    • Format: image
  20. The net haul pickled. Euphausids, copepods, crabs, etc.

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Horizon (Ship); Shellback Expedition, 1952; Berner, Leo De Witte
    • Date: 1952-08-11
    • Topic: Euphausiacea; Oceanographic instruments; Marine biology; Nets; Copepoda
    • Format: image