TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: Public Domain Mark 1.0 TI - The Welsbach Light Catalog ID - hliewun AU - Welsbach Gas Light Company PB - Rushlight Club DA - 1896/// YR - 1896 M3 - paper (fiber product) UR - https://digital.sciencehistory.org/works/hliewun AB - This is a reprint of promotional booklet produced by the Welsbach Company about the history of its light. The booklet was reprinted in 1984 by the Rushlight Club, an association of collectors and students of historic lighting. In the 1880s, Austrian chemist Carl Auer von Welsbach (1858-1929) created fabric impregnated with thorium and cerium, which glowed incandescently when heated by burning gas. Mantels for gas lamps were the first industrial product to use rare earth elements, and led to an international trade in rare earth ores, especially monazite. Welsbach managed firms around the world that sold gas lamps for lighting streets, homes and businesses, which shaped the visual landscapes that millions of people inhabited from the 1890s into the 1930s. In the United States, the Welsbach Incandescent Gas Lighting Company had offices on Walnut Street in Philadelphia, and a factory on the Delaware River at Gloucester, New Jersey. Many of the factory workers were women, who sewed the fabric mantels and packed the mantels into packages for sale across the country. KW - Welsbach Gas Light Company KW - Auer v. Welsbach, Carl (Auer von Welsbach), 1858-1929 KW - Incandescent gas-lighting KW - Incandescent gas-lighting--Fixtures KW - Advertising KW - Gas-lighting KW - Interior lighting KW - Rare earth industry KW - Rare earths LA - English ER -