Catalog entry for "Parsons' latest improved design, for controlling incandescent lighting circuits, and for demonstrating the laws of series and parallel combinations."
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical sciences made by the Central Scientific Company. Founded in 1900 in downtown Chicago, Central Scientific manufactured and distributed science teaching equipment for schools, colleges, and universities by catalog mail order. The trademark CENCO was used from 1909 onwards.
|Place of publication|
|Original file type||TIFF|
|Rights||Public Domain Mark 1.0|
|View in library catalog|
Central Scientific Company. “Lamp Rheostat.” Physical Apparatus for Universities and Colleges Manufactured and Imported by Central Scientific Co. Chicago, Illinois: Central Scientific Company, 1912. Q185.7 .C46 1912. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/hkyhaw1.
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