Small black box with a silver latch containing four glass slides inside. The four slides contain the following polarizines: cellophane layers, selenite crystals, cellophane design and thymol crystals.
Accession Number: 2011.psy.50
Primary Materials: plastic; glass
Manufaturer’s label on the top of the box “Central Scientific Co., Chicago, USA, 460 East Ohio St.”
Box: Height = 6, Width = 4, Length = 8; Slides: Width = 5, Length = 5
Function: To alter light.
Central Scientific Co., Chicago, USA, 460 East Ohio St.
Date of Manufacture:
Dept. of Psychology, University of Toronto
Additional Information and References:
Central Scientific Company was founded in 1900 in Chicago.
The instrument is made up of five parts: one box and four slides.