Gallery›Digital Commonwealth — Williams College›David P. Dethier and Rachel Hopkins (Environmental Analysis Lab Tech.) sampling twigs for chemical analysis. 1
David P. Dethier and Rachel Hopkins (Environmental Analysis Lab Tech.) sampling twigs for chemical analysis. 1
Digital Commonwealth — Williams College

David P. Dethier and Rachel Hopkins (Environmental Analysis Lab Tech.) sampling twigs for chemical analysis. 1

Art, Henry Warren · February 1987

CC0 — Public Domain
Digital Commonwealth — Williams College

David P. Dethier and Rachel Hopkins (Environmental Analysis Lab Tech.) sampling twigs for chemical analysis. 1. USDI study red maple site.

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