Above, the group at work in the a Bigelow building laboratory, probably about the late 1950s, includes, from left, Val Worthington, Gus Day, John Schilling, a mystery person, and Nat Corwin.  Below, Nat checks the algae tanks at the Environmental Systems Laboratory in 1978 during an experiment to determine the effectiveness of using sewage effluent to grow algae that would, in turn, feed shell- and finfish. (WHOI Archives Photo)

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