TY - CHAP DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: Public Domain Mark 1.0 TI - Various Geissler Tubes T2 - Physical Apparatus for Universities and Colleges Manufactured and Imported by Central Scientific Co. ID - f8jmgvu AU - Central Scientific Company PB - Central Scientific Company CY - Chicago, Illinois DA - 1912/// YR - 1912 AV - Q185.7 .C46 1912 VL - Q185.7 .C46 1912 AN - Q185.7 .C46 1912 UR - https://digital.sciencehistory.org/works/f8jmgvu AB - Catalog entry for various geissler tubes for demonstration purposes. Invented by the glassblower, Johann Heinrich Wilhelm Geissler (1815-1878), a light is produced when an electric current is passed through the rarefied gas-filled tubes. 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. KW - Scientific apparatus and instruments KW - Laboratories--Equipment and supplies KW - Glassware LA - English ER -