TechnologyThe "Cement Gun"Plaster Work Done With a HoseBy Ralph C. Davison on January 13, 1912AdvertisementABOUT THE AUTHOR(S)Recent Articles by Ralph C. DavisonAn Enormous Discharǵe of DynamiteA Useful Device for Lettering Tracings, Protecting the Threads of a Chuck and moreThe Problem of Waterproofing