Doheny Memorial Library, Los Angeles, CA 90089-0189 Public Domain. Release under the CC BY Attribution license--http://creativecommons.org/licenses/by/3.0/--Credit both “University of Southern California. Libraries” and “California Historical Society” as the source. Digitally reproduced by the USC Digital Library; From the California Historical Society Collection at the University of Southern California Send requests to address or e-mail given USC Libraries Special Collections specol@usc.edu
Description
Photograph of chemists using polarscope in examination of 'Exchange Brand' oil of lemon in Corona, ca.1930. The chemist sits on the left facing the right in a lightly-colored lab coat and large glasses. He holds the polarscope by a lever on its bottom as he looks through the eyepiece. The polarscope is pointed at a dark cylinder presented on a small, metal stand on the left. Glass, corked bottles of liquid can be seen around the experiment n the long, dark table while others are stacked neatly with their labels facing out on the shelves behind him.
Type
image
Format
1 photograph : photoprint, b&w 20 x 25 cm. photographic prints photographs
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