47A 



INDEX. 



CHEMISTRY. 



Copper arsenides, artificial, Koenig, 

 439. 



— estimation as oxalate, etc., Peters, 

 359. 



— sulphocyanides, Van Name, 451. 

 Electrolytic dissociation theory, 



Noyes and Blanchard, 460. 

 Hydrogen, desiccated by liquid air, 



weight of, Eayleigh, 459. 

 Iron, atomic weight, Richards and 



Baxter, 75. 



— determination of ferrous, Hille- 

 brand and Stokes, 393. 



Mercuric antimonide, 75. 



— titration by sodium thiosulphate, 

 Norton, 48. 



Nickel, separation from cobalt, 

 Browning and Hartwell, 316. 



Permanganate, action upon hydro- 

 gen peroxide, Baeyer and Villiger, 

 458. 



Radium, spectrum, Runge, 396. 



Resorcinol, solution in ethyl alco- 

 hol, Speyers and Rosell, 449. 



Selenium interference rings, Long- 

 den, 55. 



Silver sulphocyanides, Van Name, 

 451. 



Stibonium compounds, 75. 



Sulphur, forms of, 161. 



Telluric acid, compounds with 

 iodates, Weinland and Prause, 76. 



Triphenylmethyl, Gomberg, 458. 



Tungsten trioxide, separation from 

 molybdenum trioxide, Ruegen- 

 berg and Smith, 460. 



Uranium, radio-activity, Crookes, 

 318. 

 Christmas Island, geology, Andrews, 



79. 

 Clarke, F. W., rock analyses of 



U. S. Geol. Survey, 250. 



— Contributions to Chemistry and 

 Mineralogy, 469. 



Coherer, action of, Mizuno, 463. 

 Colorado, carnotite, etc., from, Hille- 

 brand and Ransome, 120. 



— tellurides from, Palache, 419. 

 Colorado Canyon, geology, Davis, 



251. 

 Corona, see solar. 

 Cory, Birds of N. America, 89. 

 Crookes, Sir Wm., radio-activity of 



uranium, 318. 



Davis, B., stationary sound-waves, 



231. 

 Davis, W. M., notes on the Colorado 



Canyon, 251. 



Day, A. L., gas thermometer at high 

 temperatures, 171. 



Derby, O. A., schists of the gold and 

 diamond regions, Brazil, 207 ; notes 

 on monazite, 217. 



Devil's Lake, Wis., geology, Salis- 

 bury and Attwood, 248. 



Diller, J. S., Bohemia Mining region 

 of Oregon, 465. 



Douglass, E., new species of Mery- 

 cochaerus in Montana, 428. 



Earthquake investigation committee, 

 publications, 471. 



— waves, velocity, 471. 



Electric charge, loss by evaporation, 

 Craig, 463 ; loss in air from ultra- 

 violet radiation, Lenard, 464. 



— charges, magnetic effect of mov- 

 ing, Cremieu, 396. 



— conductivity of gases traversed by 

 cathode rays, McLennan, 219. 



— discharge in rarefied gases, Skin- 

 ner, 76. 



— measurements, Rowland's methods, 

 Potts. 91. 



— pressure, when dangerous, Weber, 

 396. 



— resistance, experiments on high, 

 Part I, Rood, 285. 



Electricity, atmospheric, variation 

 of, Chauveau, 161. 



Electrolytic Dissociation, Jones, 76 ; 

 theory of, Noyes and Blanchard, 

 460. 



Emerald Mines of Cleopatra, Mac- 

 Alister, 468. 



Emerson, B. K., Carboniferous 

 bowlders from India, 57 ; bivalve 

 from Connecticut river Trias, 58. 



Expansion, co-efficient of, for plati- 

 num, porcelain, etc., Holborn and 

 Day, 172. 



Farrington, O. C, mineralogical 



notes, 83. 

 Finland, Geol. Survey Bulletins, 249. 

 — Bjurbole meteorite, 250. 

 Flight, possibilities of, Rayleigh, 77. 

 Flink, minerals from Greenland, 323. 

 Ford, W. E., Calcite crystals from 



Union Springs, N. T., etc., 237. 



Gas thermometer at high tempera- 

 tures, Holborn and Day, 171. 



Gases, absorption by glass powder, 

 Mulfarth, 462. 



