Show injurious employments nitric acid is employed as a solvent for tin in making dyes by engravers gravers ell to etch co copper p per in the manufacture of gun cotton in the gliding gilding trades and in preparing pre parine the felt for hats the f fumes umes of it arc are more irritating ri to human throats and lungs than Js a red rag to a bull and they cause no end of bronchial and catarrhal affections tha the workers in id various brane branches besof of trade buffer from the fumes of ammonia they cauce inflammation of theeres the eyes and a peculiar skin disease ense which it has been suggested may bo be due to the formation of a soap by the union of the ammonia with the liquid of the lubricating skin glands if that be true every man could be a per ambulating ambula ting soap factory men afen employed in guano works become deaf and the skin of their noes asand and foreheads is peculiarly discolored bythe by the ammonia their strength fails and they suffer from anc ancella emla new york world |