INDEX. 



483 



CHEMISTRY. 



Alkaline metals, boiling points of, 

 Euft'and Johannsen, 78 ; hydrides 

 of, Moissan, 77. 



Ammonium sulphate, decomposi- 

 tion, Delepine, 247. 



Antimony, modifications, Stock and 

 Siebert, 170. 



Asbestos, precipitates on, Penfield 

 and Bradley, 453. 



Bismuth, determination, Staehler 

 and Schaffenberg, 171. 



Bromine fluoride, Lebeau, 172. 



Caesium chromates, Fraprie, 309. 



Calcium hydride, gaseous in acety- 

 lene, 464 ; preparation, Jaubert, 

 464. 



— metasilicate, polymorphic forms, 



Allen and White, 89. 

 Carbon oxybromide, von Bartel, 



463. 



suboxide, Diels and Wolf, 396. 

 Cyanogen, synthesis of, Wallis, 464. 

 Ferric chloride in the zinc redue- 



tor, Eandall, 128. 

 Gold, colorimetric determination, 



Maxson, 270. 



— distillation, Moissan, 171. 

 Grape sugar, determination, 325. 

 Halogens in organic compounds, 



determination, Vaubel and 



Schauer, 396. 

 Hydriodic acid, rapid preparation, 



Bodroux, 326. 

 Hydrochloric acid and potassium 



permanganate, interaction, 



Brown, 41. 

 Iron group, distillation of metals, 



Moissan, 397. 



— rusting of, 78. 

 Iron-cyanogen compounds, cause of 



color, 78. 



Manganese as a fertilizer for plants, 

 Bertrand. 248. 



Nitrous and nitric acids, determin- 

 ation, Weisenheimer and Heim, 

 170. 



Organic substances, mechanical sep- 

 aration, Bordas and Tourplain, 

 398. 



Platinum group, boiling of metals 

 of, Moissan, 325. 



Polonium, radio-activity of, Curie, 

 326. 



Eadium, see Radium. 



Silicon, ftuoroform, Ruff and Al- 

 bert, 247. 



Silver, electro chemical equivalent, 

 Van Dijk, 326. 



— vapor, molecular weight, Warten- 

 berg, 463. 



Sulphur in pyrites, determination, 



Hintz and Weber, 324. 

 Tellurous and telluric acids, Berg, 



248. 

 Thorium, see Thorium. 

 Chwolson, O. D., Lehrbuch der 



Physik, 174. 

 Cirkel, F., asbestos, 255; mica, 405. 

 Coast Sui'vey, report, Tittmann, 259. 

 Coherer, electrolytic, Gundry, 326. 

 Colorado, Georgetown, pre-Cambrian 

 rocks, Ball, 371. 



— red beds of southwestern, Cross 



and Howe, 328. 



Colloidal solutions, electrically pre- 

 pared, Burton, 399. 



Condenser sparks, energy, duration, 

 etc., Heydweiller, 465. 



"Container," new form for Muse- 

 ums, Goodale, 451. 



Corals, Madreporian in British Mu- 

 seum, Bernard, 474. 



— Paleozoic, early stages, Gordon, 



109. 

 Cross, W., red beds of southwestern 



Colorado, 328. 

 Crystallography, Groth, 185. 

 Crystals, drawing of, Penfield, 206. 

 Cuba, Harvard Botanical Station, 



475. 



Dadourian, H. M., radio-activity of 



thorium, 427. 

 DeLury, J. S., cobaltite in northern 



Ontario, 275. 

 Doelter, C, Pedogenesis, 472. 

 Dominica, Avifauna of, A. H. Ver- 



rill, 337. 

 Dresser, J. A., metamorphic rocks 



of St. Francis Valley, Quebec, 67. 

 Dynamics of Living Matter, Loeb, 



479. 



Earthquakes, de Ballore, 331. 

 Eastman, C. R., Dipnoan affinities 



of Arthrodires, 131. 

 Electrical conductivity of flames, 



Wilson and Gold, 399. 



— radiation, Paetzold, 250. 



— rectifier, Wehnelt, 250. 

 Electro-Chemistry, Hopkins, 249. 

 Electrolytic coherer, Gundry, 326. 

 Electron, constitution of, Kaufmann, 



398. 

 Elektrische Kraftubertragung, Phil- 



ippi, 81. 

 Ethnology, Bureau of American, 



publications, 260. 



