Richmond Diatomaceous Earth. [caption title]
Priced list for microscopic slides of diatoms, fossilized single-celled aquatic plants, as prepared by Charles Lewis Peticolas (1829–1919) of Richmond.
Peticolas outlines the local geology, the history of the discovery of Richmond’s unusually pure diatomaceous deposits, the various genera and species of diatoms found there, and their suitability for mounting as samples for microscopic study.
With testimonials from Philadelphia microscope maker William H. Walmsley; the secretary of the San Francisco Microscopical Society; and the editor of the Microscopical Department of the American Naturalist.
Description: Richmond Diatomaceous Earth. [caption title]
[Likely Richmond. 1878]. Single sheet, folded once to form , 2–3, [4 (blank)]pp., 8 x 5 inches. A few author’s ink corrections. Fine.