The SciencesGruneberg's Apparatus for the Manufacture of Sulphate of AmmoniaBy Watson Smith on November 6, 1886AdvertisementABOUT THE AUTHOR(S)Recent Articles by Watson SmithFeodossieff's New Method of Tempering and Hardening Steel for Cannon and ProjectilesOn Wool and Fur, modes of Cleansing them for the Textile Industry, and on a New Process Recently Patented by Messrs. Singer & JudellOn Wool and Fur, their Origin, Structure, Chemical and Physical Properties, and Composition