Figure depicting "The Geryk" air pump, "an English pump (Fleuss' patents), and a strictly mechanical device with no valves in the usual sense of the word..."
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. “‘The Geryk’ Mechanical Air Pump for High Vacua.” Physical Apparatus for Universities and Colleges Manufactured and Imported by Central Scientific Co. Chicago, Illinois: Evening Wisconsin Printing Company, 1912. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/ucu9d1r.
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