Detail of Fig. 1, Class of 1860, Department of Chemistry, close up of the chemistry experiment showing touching up to highlight the glass equipment.
Undated, possibly ca. 1857
Salted paper print
14 x 17 in. (36 x 43 cm)
Art Properties, Avery Architectural & Fine Arts Library
Acquired by Frederick Chandler for the Chandler Chemical Museum Collection
Columbia University
https://clio.columbia.edu/catalog/14982980