PATENTS
... (Condensad froat Ilt Journal of ?? Connisaiaones of Patents.) GRnANs AD AfTes OF PROVISIONAIt PROTrCTION FOR SoX LONaes.-Wm, Wharton Burton, Newcastle-upon- Tyne, A new or improved process of bleaching vegetable fibre.-Wmz. Hall, Salford, Improvements in separating yeast from liquid matter, and in apparatus to be used therefor. 20th September, 1867.-James Henry Nelson and Thomas Briggs, ...