Semaine se terminant le 14 mai 1887. DUI BALLON Ballon-VarnishesFormulas pour deux vernis. loon ' 9474 loon service . 9369 II. A34 PHYGiuseppe VerdiBiography RA et portrait du grand compositeur d'opéra.-1 illustration 9178 III. D ClIEMISTRYDetection ChloroformBy CHARLES hIIDE Ph.Le givrage de la fiabilité de l'Ragskyand Hofmann tests pour chloroforme dans corpsesTheir application à une récente affaire de meurtre. 9477 IV. ELECTRICITYA BatteryThe «stockage Nouvelles Nouvelles '' l'Union lithanode plateFull avec batterie détails de construction et de poids 9477 acide tungstique comme un substitut de l'acide chromique ou par le bichromate de potasse
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Week Ending May 14 1887. BALLOON DUI—Balloon VarnishesFormulas for two varnishes. loon ' 9474 loon service . 9369 II. BIOG RA PHYGiuseppe VerdiBiography and portrait of the great operatic composer.-1 illustration 9178 III. ClIEMISTRYDetection of ChloroformBy CHARLES hIIDE ICING Ph.DThe reliability of the Ragskyand Hofmann tests for chloroform in corpsesTheir application to a recent murder case. 9477 IV. ELECTRICITYA New 'Storage BatteryThe new ' Union' battery with lithanode plateFull details of construction and weight 9477 Tungstic Acid as a Substitute for Chromic Acid or Bichromate of Potash for Primary Batteries 9474 V. ENGINEERINGDrawbridge over the Harlem RiverDescrip tioq of the Elevated Railroad bridge over the Harlem River New York cityThe anipulatinn of the draw.-2 illustrations 9164 bee's first steamboat and of Grieve's first screw propeller of 1794 9164 Traction IncreasersThe different methods of regulating the ent traction 9466 VI. HYGIENEClimate in its Relation to HealthBy G. V. POORE M.DThe second lecture of this important series 9475 VII. MINING AND METALLURGYGold Mining MachineryFull description of new mining plants constructed and in process of construction in England for use in the Transvaal in Australia and elsewhere.-14 illustrations. 9470 LIAM RAMSAYA process providing for the utilization of lead tions 9173 VIII. M ISCE I.LANEOUSTheatrical Fire ArmsThe guns pistols and niitrailleuse of the stage.-2 illustrations . 9177 The Scallop and its FisheryBy ERNEST INGERsOLL—Interest Mg account of the scallop fishing industry and the preparation of the bivalves for market. 9476 TopolobampoNote on the failure of the new colony. 9466 ; light draught steamer built by John Birch & Co. of Liverpool for serviceia JavaHer speed and dimensions.-2 illustrations 9466 X. ORDNANCEGun SteelA report of a paper on the treatment vice 9172 The Pneumatic Dynamite Torpedo GunAn exhaustive account of the new gunThe different guns hitherto made described and illustra
