RECENT APPOINTMENTS. Mr. C~~ARLES E. CASSELK, F.C.S., F.I.C., has been appointed Publio Analyst for the Borough of Chipping Wycombe, Bucks, at 10s. 6d. for each quarterly report, 10s. 6d for eaoh ordinary analysis, 21s. for each analysis of water, and 21s. 3d. per mile for each compulsory attendance as a witnem. Mr. David Eooper, F.C.S., of Birmingham, has been appointed by the Secretary of State for India Antllytical Chemist and Quinologist fo the Nilgiri Govern- ment Cinchona Plantations in tho Madras Presidency.- ----.-- - - 92 THE ANUYST. GLUCOSE I N LEATHER. ACCORDING to the 8Aoe awd Zeathar Review, the falsification of the weight of leather by adding glucose, or grape sugar, appears to be carried on rather extensively in Germany, and the shoe trade societies are taking steps to protect themselves from the imposition.A simple test is reconunended, which consists in placing pieces of the leather in water for the space of twenty-four hours, when the glucose will be dissolved by the water, and the result will be a thick, sirupy liquid. When two pieces of the leather are placed together and left in that position for a time, it will be found difficult to separate them, as the gummy exudations will stick them :together. It is stated that some sirmples of sole leather were found to contain as high as 30 to 40 per cent. of extra weight. Another test recommended is to cut off small pieces of the leather, and, Trapping them up in a damp cloth, lay them away for a few days in a temperate place. If tho leather is adulterated, the pieces will be found to be stuck together, and surrounded by a sirupy substance in proportion to the quantity of the adulterant used ; and the peculiarity about leather treated with grape sugar is that, after wetting, it is difficult to dry, and resembles gutta percha or untanned leather more than the genuine article.-Scimt@c American.RECENT CHEMICAL PATENTS. The following specifications have been recently published, and can be obtained from the &eat Seal Office, Cursitor Street, Chancery Lane, London. No. Name of Patentee. Title of Patent. Price 1833 A. J. Boult , , , , . . Burning Hydro-Carbon Oils, together with Steam or Water, $0. . . . . . . . . . . . . . . . . ad. 1366 H. J. Haddan , . , , Apparatus for Manufacture of Illuminating and Heating Gas, from Petroleum and other Oile .. , . , , 2d. 1339 H. E. Newton . . . . Apparatus for Producing Coal Gas . . . . . . . . Od. 1849 J. S. McDougall . . . . Production of Sulphurous Acid, &c., and applying the same to the treatment of Wood Pulp, $0. . . . . . . 4d. 1890 A. G. Bouiet . , . . Material or Composition to be nsed as a Substitute for Plaster of Paris, Tripoli, or the like, and Maniffacture of same Id. 1427 W. Rammy . . . . . . Manufmtnre of Sulphur Compounds . . . . . . . . 2d. 148:! Sir J. S. Blane .. . Treating White Peat for production of an agent suihblefor combiigwith Paints, Varnishes, Paper Pulp, and other materials to render same fireproof, and imperviou8 tomoisture . . . . . . . . . . . . . . 4d. 1447 TV. B. Wicken . . . . Regenerative Gas Burners and Lamps . . . . . . &I. , , 1169 M. Zingler . . . . . . Treatment of Fish or other Animal Offal, for Producing Artificial Guano and other products . . . . . . 2d. BOOKS, &a,, RECEIVED. The Chemist and Druggist ; TheBrewerd Guardian ; The British Medical Journd ; The Pharma- ceutical Journal ; The Sanitary Record; The Mder; The Provisioner; The Practitioner; New Remedies ; Proceedings of the American Chemiaal Society : The InventorB’ Record ; New York Public Health The Scienfific American ; Society of Arb Journal ; Sanitary Engineer of New York ; Cowkeeper and Dairyman’s Journal ; Sugar Cane ; Coune Brewers’ Gazette ; The Medical Record ; The Grocerd Gazette; London Water Supply, by Crookes, Odling and Tidy : Chemical Review ; Independent Oil and Drug Journal and Paint Review ; Scienoe Monthly ; Journal of the Society of Chemical Industry.