688 



GENERAL INDEX. 



[12 



CHEMISTRY. 



Silver, estimation by electro- 

 deposition, Gooch and Feiser, 



31, 109. 



— spitting of, Baker, 37, 554. 

 Sodium carbonate, hydrates, 



Wegscheider, 33, 280; mo- 

 lecular weight, Richards and 

 Hoover, 39, 213. 



— chloride, electrolysis, Peters, 



32, 365; reactions in a sys- 

 tem of, Peters, 32, 386. 



— paratungstate, action of, Ku- 

 zirian, 36, 301; use of, Gooch 

 and Kuzirian, 31, 497; Ku- 

 zirian, 36, 305. 



— sulohate, molecular weight, 

 Richards and Hoover, 39, 213. 



Steels, analysis of special, Zin- 

 berg, 36, 417. 



Strontium and calcium, separa- 

 tion of, Hinds, 32, 61. 



Sugar cane, determination of, 

 Jolles, 31, 567- 



Sulphates, cerium earth double, 

 decomposition, Browning and 

 Blumenthal, 32, 164. 



— detection of elements form- 

 ing insoluble, Browning and 

 Blumenthal, 32, 246. 



— hydrolysis of metallic alkyl, 

 Linhait, 34, 289, 539; 35, 283; 

 Drushel and Linhart, 32, 51. 



— water of crystallization in, 

 Kuzirian, 36, 401. 



Sulphur in insoluble sulphides, 

 Waiunis, 34, 398; in pyrites, 

 Allen and Bishop, 34, 477; in 

 soluble sulphates, determina- 

 tion, Turner, 38, 41. 



— dioxide, action upon am- 

 monia, 31, 567. 



— monochloride for decompos- 

 ing certain minerals, Hicks, 

 33,374- 



— trioxide, action upon salts, 

 Traube, 36, 644. 



Sulphurous acid, determination, 



Jamieson, 38, 166. 

 Telluric acid, use in analysis, 



Gooch and Cole, 37, 257; 



preparation, Browning and 



Minnig, 36, 72. 

 Telluiium, alleged complexity, 



Harcourt and Baker, 33, 155. 



— vapor, absorption spectrum, 

 Evans, 34, 576. 



CHEMISTRY. 



Tellurous acid, preparation, 



Oberhelman and Browning, 



36, 399- 

 Thorium-D, volatility, Wood, 



39, 218. 

 Tin, antimony, etc., analysis of 



alloys, Stief, 39, 602. 

 Titanium, estimation, Thornton, 



34, 214. 



— new colorimetric, Lenher 

 and Crawford, 35, 637. 



— separation from iron, Thorn- 

 ton, 37, 173, 407; from nio- 

 bium, etc., Muller, 33, 373. 



— dioxide, heat of formation, 

 Mixter, 33, 45. 



Tungsten compounds, Olsson, 

 36, 73- 



— and molybdenum, separa- 

 tion, Marbaker, 39, 214. . 



Tungstic acid, reduction tests, 

 Torossian, G., 38, 537. 



Ultra-violet rays, nitrification, 

 Berthelot and Gaudechon, 32, 



319. 



Uranium, see Uranium, also 

 Radio-activity, Radium. 



Vanadic acid, reduction, Cain 

 and Plostetter, 33, 375. 



Vanadium, fluorides of, Ruff 

 and Lickfett, 32, 467. 



— pentavalent, estimation, 

 Oberhelman, 39, 530. 



— and uranium oxides, heat of 

 formation, Mixter, 34, 141. 



Water, determination, Zerewiti- 

 noff, 33, 374- 



— qualitative test, Weaver, 39, 

 312. 



Zirconium, separation, Thorn- 

 ton and Hayden, 38, 137. 

 Cheshire, Conn., "dam" at, 37, 



155. 

 Chile, Atlas of, 35, 559- 

 China, Cambrian faunas, Walcott, 



32, 322. 

 — Research in, Walcott, 36. 650. 

 Chiriquian Antiquities, Mac- 

 Curdy, 32, 478. 

 Chlorophyll, absorption spectrum, 



VanGulik, 39, 604. 

 Chronometers, Mascart, 31, 154. 

 Church, A. E., Geometry, 32, 84. 

 Cincinnati Observatory, see Ob- 

 servatory. 

 Circuit-breaking device, Wenrich, 

 32, 269. 



