482 



INDEX. 



CHEMISTRY— eon! in ued. 



Cerium, separation of, James and 

 Pratt, 394. 



Chlorides, metallic, Herrmann, 394. 



Coal, mineral, constituent of, Pictet 

 and Ramseyer, 467. 



Electric furnace for chemical pur- 

 poses, Fischer and Tiede, 319. 



Fluorine, gravimetric determina- 

 tion, Starck, 318. 



Iron and vanadium, determination, 

 Miiller and Dieffenthaler, 393. 



Manganese, volumetric method, 

 Metzger and Marrs, 61. 



Metals, passive state, Grave, 393. 



— solution in dissolved iodine, 

 Van Name and Bosworth, 207. 



Nitrogen, modification by electric 

 discharge, Strutt, 65, 318. 



Oxides, acidic, with sodium oxide, 

 heat of combination, Mixter, 202. 



Ozone, flames supported by, Strutt, 

 63. 



Silicates, fluorides, etc., detection, 

 Browning, 249. 



Sodium chloride, electrolysis, 

 Peters, 365 ; reactions in a sys- 

 tem of, Peters, 386. 



Strontium and calcium, separation 

 of. Hinds, 61. 



Sulphates, cerium earth double, 

 decomposition, Browning and 

 Blumenthal, 164. 



— detection of elements forming in- 

 soluble, Browning and Blumen- 

 thal, 246. 



— hydrolysis of metallic alkyl, 

 Drushel and Linhart, 51. 



Ultra-violet rays, nitrification, Ber- 

 thelot and Gaudechon, 319. 



Uranium, disintegration products, 

 Antonoff, 469. 



— hexafluoride, Ruff and Heinzel- 

 mann, 319. 



Vanadium, fluorides of, Ruff and 

 Lickfett, 467. 



China, Cambrian faunas, Walcott, 

 322. 



Chiriquian Antiquities, MacCurdy, 

 478. 



Church, A. E., Geometry, 84. 



Clark, A. H., recent crinoid faunas, 

 127. 



Clarke, J. M., geology of St. Law- 

 rence, 397; Magdalen Islands, 397. 



Cleland, H. F., Wisconsin Devo- 

 nian, 73. 



Coast Survey, United States, 80. 



Congo, Belgian, minerals, Buttgen- 

 bach, 168. 



Connecticut geol. survey, 398. 



Crawford, R. D., rhodonite crystal 



from Franklin, N. J., 289. 

 Cross, W., natural classification of 



igneous rocks, 77. 

 Crystallography, Tutton, 325. 

 Currents, Direct and Alternating, 



Bedell and Pierce, 395. 

 Cycads, studies of fossil, Wieland, 



133, 433, 473. 



Dachnowski, A., xeromorphy in 

 Carboniferous vegetation, 33. 



Density, determination, Merwin, 

 425 ; standards of, Merwin, 429. 



Derby, O. A., gold-bearing lode of 

 Passagem, Brazil, 185; notable Bra- 

 zilian diamond, 191. i 



Diamond, Brazil, Derby, 191. 



Diffusion theory diseussed, Van 

 Name and Bosworth, 207. 



Direct and Alternating Current 

 Manual, Bedell and Pierce, 395. 



Drushel, W. A., hydrolysis of me- 

 tallic acid sulphates, 51. 



Electric arc, Simon, 396. 

 Electro-analysis, Smith, 468. 

 Electrochemistry, Thompson, 396. 

 Electro-deposition, Field, 68. 

 Electrons, emission of, by metals 



under influence of alpha rays, 



Bumstead, 403. 

 Enzyme Action, Bayliss, 82. 

 Ethnology, Bureau of American, 



236. 



Field, S., Electro-deposition, 68. 



Flames supported by ozone, Strutt, 

 63. 



Flight, mechanical, Langley, 400. 



Foods, Pure, Olsen, 401. 



Ford, W. E.,herderite crystals. Au- 

 burn, Me., 283; analysis of stibio- 

 tantalite, 287 ; rhodonite crystal, 

 Franklin, N. J., 289. 



Frost data of the United States, Day, 

 81. 



Galapagos Islands, botanical survey, 



Stewart, 78. 

 Gems and Precious Stones of 1910, 



Sterrett, 398. 



