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  1. [Friday Harbor] Heavy Grab Sampler ready for lowering, VII-21-50

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995
    • Date: 1950-07-21
    • Topic: Marine sediments; Oceanographers; Oceanographic instruments
    • Format: image
  2. 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
  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. Berner brings in meter net

    • 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
    • Topic: Oceanographic instruments; Scientific expeditions; Marine biology; Nets
    • Format: image
  5. 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
  6. Coring device, note trigger

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995
    • Date: 1950-07-21
    • Topic: Drill cores--Pacific ocean; Submarine geology; Oceanographic instruments
    • Format: image
  7. Grab Sampler "Ready"

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995
    • Date: 1950-07-21
    • Topic: Oceanographic instruments; Marine sediments
    • Format: image
  8. 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
  9. 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
  10. 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
  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. 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
  13. 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
  14. Buoy drifting with deep cross off Salmon Bank Lt. Current 1 knot to N.W. Note Wake current pole showed spc. Current of 1 knot to SW VIII-4-50 1370 PST

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995
    • Date: 1950-08-04
    • Topic: Currents; Oceanographic buoys--North Pacific Ocean; Oceanographic instruments
    • Format: image
  15. Cliff Barnes with BT on Hyda off Cattle Pt. VIII-4-50 0915

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995; Barnes, Clifford A. (Clifford Adrian), 1905-
    • Date: 1950-08-04
    • Topic: Oceanographers--Portraits; Oceanographic instruments; Scientists--Portraits; Bathythermograph
    • Format: image
  16. 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
  17. Emery Type Sampler in "Ready" Position VII-21-50 1140 PST

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995
    • Date: 1950-07-21
    • Topic: Marine sediments; Oceanographic instruments
    • Format: image
  18. Grab Sample from 50f between Lawson Reef and Smith Island. Shell and coarse mud VII-21-50 1138 PST

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995
    • Date: 1950-07-21
    • Topic: Marine sediments; Oceanographic instruments
    • Format: image
  19. Grab Sampler on Deck and Release of Sample VII-21-50 1136 PST

    • Collection: Robert S. Arthur Slides and Survival Charts
    • Name: Arthur, Robert S., 1916-1995
    • Date: 1950-07-21
    • Topic: Oceanographic instruments; Marine sediments
    • Format: image
  20. 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