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Jan B. Lawson of the Scripps Institution of Oceanography's Swan Song Expedition (1961) is shown here ready with a Nansen bottle to store the collection sample aboard the R/V Argo. This expedition explored the North Pacific at the equator and Eastern Tropical Pacific on the research ship Argo. The expedition collected large water samples for analysis, studied the Cromwell Current (Pacific Equatorial Undercurrent), and undertook a limited biological program for the Inter-American Tropical Tuna Commission. 1961.

Jan B. Lawson of the Scripps Institution of Oceanography's Swan Song Expedition (1961) is shown here ready with a Nansen b...