Vema cruise 20, February 1964-December 1964 : part 1, February 1964-June 1964

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This item is part 1 of a two part, unbound logbook for Vema 20. It contains information about Vema cruise 20 from February 16 to June 23, 1964. This item includes summary logs (including flowmeter logs), detailed logs, and bathythermograph observations. Summary of route: The cruise begins at 31° 10'n, 67° 31'w, near Bermuda. They sail west and south into the Caribbean sea and then into the North pacific Ocean. They continue west until they are near Hawai'i, then head northwest into the Bering Sea. They travel south and further west across the North Pacific Ocean, ending at 34° 49'n, 139° 58'e, off the coast of Japan. Summary logs tracking temperatures from February 16 to December 9, 1964 are also included. These include the following information: date, station number, time, coordinates, and temperature. Flowmeter summary logs record the following information: Station, type of tow, reading (revs.), length (min.), Revs/min., wind force, sea condition, vol. H20 filtered, and remarks. The detailed logs are from February 16 to June 23, 1964 and include the following information: cruise number, station number, date, type, 1M net in, out, 1M meter reading, 1/2M net in, out, 1/2M meter reading, coordinates, median local time, 1M length tow, 1/2M length tow, wire angle at depth, corrected depth, corrected depth, 1M displ. vol., 1/2M displ. vol., corrected displ. vol., vol. H20 filt. 1M, vol. H20 filt. 1/2M, comments (whether or not the haul was successful), net clogged, net tears, No. bottles used, surface temp. (occasionally), and observer. The back (verso) of the detailed log sheets records BT slide no., depth, temperature, salinity in a table. Some detailed logs sheets include time-depth recorders (made by Benthos, Inc), which are approximately 3 inches in diameter. Each of these has a date, time, coordinates, ship name, recorder number, (and a place to record calibration).

Date Range


Start Date

Feb 16, 1964

End Date

Jun 23, 1964

Access Information

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  • Marine Biology
  • Plankton
  • Invertebrates
  • Marine biologists
  • Marine biology


  • Bering Sea
  • Caribbean Sea
  • North Atlantic Ocean
  • North Pacific Ocean


  • Fieldbook record
  • Field notes
  • Logbooks

Accession #

SIA Acc. 09-008

Collection name

Allan W. H. Bé papers, circa 1953-1969

Physical Description

1 logbook

Physical Location

Smithsonian Institution Archives


Box 3 Folder 4