Outgoing academic and professional correspondence, including reviews, of Beatrice Sweeney, Professor of Biology, written from 1971-1978.

Beatrice M. Sweeney was a plant physiologist by training who specialized in circadian rhythms, or biological clocks, in marine organisms. She was a professor of biology at UCSB from 1969 until her death in 1989. Her area of expertise was unicellular organisms and she spent a number of years trying to discover the mechanism that caused bioluminescence in the genus Gonyaulax, a kind of plankton. She published a short book on the subject of rhythmicity called Rhythmic Phenomena in Plants in 1969.

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