476 



INDEX. 



CHEMISTRY. 



Argon and its companions, Ramsay 

 and Travers, 166. 



Atomic weights, method of deter- 

 mining, Benoist, 464. 



Caesium-antimonious fluorides, 

 Wells and Metzger, 451. 



Carbon compounds, spectrum, 466. 



— non-existence of trivalent, Nor- 

 ris, 236. 



Cerium, Drossbach, 286. 

 Chemical reactions, velocity of, 



Duane, 349. 

 Chlorine, preparation from sodium 



chlorate, Graebe, 392. 



— heptoxide, Michael and Conn, 

 235. 



Chromium in acids, phenomena 

 connected with solution of, Ost- 

 wald, 84. 



Crystals, method for obtaining, 

 Wroblewski, 236 ; Bumpier, 318. 



Diethyl peroxide, Baeyer and Vil- 

 liger, 162. 



Gallium in the sun, Hartley and 

 Ramage, 323. 



Gases in air, Liveing and Dewar,] 54. 



— combustion of, Tantar, 86, 317. 

 Gold, diffusion in solid lead, Rob- 

 erts-Austin, 236. 



Helium, 166, 154. 



Hydrate of sulphuryl chloride, 



Baeyer and Villiger, 393. 

 Hydrogen, boiling point of, Dewar, 



291 ; in air, Rayleigh, 165. 



— peroxide, action upon silver 

 oxide, Baeyer and Villiger, 393. 



— telluride, Ernyei, 163. 

 Krypton, Ladenburg and Kruegel, 



85, 166. 



Lead, radio-active, Hofmann and 

 Strauss, 235, 463. 



Magnesium and. aluminum, Duboin, 

 464. 



Methane elimination in the atmos- 

 phere, Urbain, 318. 



Neon, properties, 154, 166. 



Ozone, molecular weight, Laden- 

 burg, 391. 



Phosphorus, emanation from, Bar- 

 us, 237 ; in spherical condensers, 

 310. 



Platinum, loss of weight when 

 heated, 164. 



— presence upon an Egyptian in- 

 scription, 465. 



Potassium and sodium sulphocy- 

 anides, color when heated, Giles, 

 318. 



Radium ravs, action upon selenium, 

 Bloch, 464. 



Radium rays, physiological action, 

 Walkhoff, 235. 



Sulphur hexafluoride, etc., Moissan 

 and Lebeau, 391. 



Tobacco, new alkaloids in, Pictet 

 and Rotschy, 392. 



Trouton's law, generalization from, 

 465. 



Xenon, properties, 166. 



Zirconia of euxenite, Hofmann and 

 Prandtl, 463. 

 Cilley, F. H., theory of elasticity, 269. 

 Classen, A., Analytical Chemistry, 



319. 

 Clayton, H. H., eclipse cyclone, 321. 

 Conductivities of double salts, Lind- 

 say, 164. 

 Connecticut Academy of Sciences, 



330. 

 Copper and Zinc, thermo-chemistry of 



alloys of. Baker, 237. 

 Corona, Solar, theory, Bigelow, 253. 

 Cosmogony, theories of, O. Fisher. 



414. 

 Crook, Z., yoke with intercepted 



magnetic circuit, for measuring 



hysteresis, 365. 

 Crystals, method of obtaining, Riim- 



pler, 318 ; Wroblewski, 236. 

 Cycads, American fossil, Wieland, 



423. 



Davison, C, velocity of seismic 

 waves, 95. 



Day, A. L., melting point of gold, 

 145 ; expansion of metals at high 

 temperatures, 374. 



Derby, O. A., occurrence of topaz, 

 Ouro Preto, Brazil, 25. 



Deserts, formation of, Walther, 326. 



Dewar, J., spectrum of the volatile 

 gases of atmospheric air, 154 ; boil- 

 ing point of hydrogen, 291. 



Douglass, E., new species of Mery- 

 cochcerus in Montana, 73. 



Duane, W., velocity of chemical re- 

 actions, 349. 



Earth, theories of origin, Fisher, 414. 

 Earthquake waves in the ocean, 95. 

 Eclipse cyclone, Clavton, 321. . 

 Elasticity, theory of, Cilley, 269. 

 Electric charge, effect of magnetic 

 field upon, Cremieu, 87. 



— conductivity produced in gases, 

 Townsend, 238 ; of double salts, 

 Lindsay. 164. 



— convection, Cremieu, 87, 321. 



