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Scientific members of the Swan Song Expedition (1961) are shown here checking out the \"sampler\" water collection bag in Hawaii. 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. September 1961.

Scientific members of the Swan Song Expedition (1961) are shown here checking out the \"sampler\" water collection bag in ...