508 



INDEX. 



Chemistry — 



Carbon, heat of combustion, Berthe- 



lot and Petit, 324. 

 Cellulose, colloidal, Guignet, 408. 

 Chromium, atomic mass of. Rawson, 



74. 

 Earths, spectroscopic discrimination 



of rare, Crookes, 486. 

 Ethylene, point of solidification, Olew- 



ski, 326. 

 Formic aldehyde, synthesis of, Jahn, 



159. 

 Gnomium, new element, Muller, 75. 

 Hydrogen fluoride, yapor density, 

 Thorpe and Hambly, 157 ; peroxide, 

 action on chromic acid, Berthelot, 

 74. 

 Molecular mass of dissolved substan- 

 ces, Will and Bredig, 325. 

 Ozone, boiling point, Olewski, 326. 

 Potassium chloride, decomposition by 



heat, McLeod, 158. 

 Seminose and mannose, identity of, 



Fischer and Hirschberger, 159. 

 Silver, allotropic forms, Lea, 47. 129, 



237, 241. 

 Silver chloride, darkened, no't an oxy- 



chloride, Lea, 356. 

 Tartrate solutions, circular polariza- 

 tion of, Long, 264. 

 Tungsten, crystallized, Riddle, 160. 

 Chemistry. Commercial Organic analysis. 

 A. H. Allen, 490. 



Treatise on, Muir, 410. 



Text Book of Organic. Bernthsen, 



491. 

 Watts' Dictionary of, Morley and 

 Muir, 409. 

 Clarke, F. W., new occurrence of gyro- 

 lite, 128 ; theory of mica group, 384. 

 Clouds, luminous night, 79. 

 Colorado, Scientific Society, Proceed- 

 ings, vol. hi, 255. 

 Congress, International, of Electricians, 



definitions adopted by, 410. 

 Constantin. Tertiary Flora of Australia. 



493. 

 Coral reefs of Hawaiian Ids., Agassiz, 



169. 

 Coral submerged banks in China Sea, 1 69. 

 Crew, H., period of rotation of sun, 204. 

 Croll, J., evidence of former Glacial 



periods, 66. 

 Crookes, W., Address to Chemical So- 

 ciety, 486. 

 Crova, blue color of sky, 491. 

 Crystallography, Chemical, Fock. 494. 

 Index, Goldschmidt, 494. 



Dall, W. H., Gastropoda and Scapho- 

 poda, 254; hinge of Pelecypoda and 

 its development. 445. 



Dartou, N. H., lava flows and trap 



sheets, N. J., 134. 

 Darwinism, Wallace, 170. 

 Davis, W. M., rivers and valleys of 



Penn., 414. 

 Dawson, G. M., earlier Cretaceous of 



N. W. Canada, 120. 

 Dawson, W., new Erian plant, 1, 80. 

 DeCandolle, A., Monographia; Phan. 



Prod. vol. vi, Andropogonege, Auct. 



E. Hackel, 253. 

 Dinosauria, see Geology. 

 Duncan, L., B. A. unit of resistance, 230. 

 Dwight, W. B., explorations in Wap- 



pinger Valley limestones, N. Y., 139. 



E 



Earth, mathematical theories of, Wood- 

 ward, 337. 

 Egieston, T., Catalogue of Minerals and 



Synonyms, 494. 

 Eldridge, G. H, on grouping formations 



of middle Cretaceous, 313. 

 Electric arc, compared with sunlight, 

 Langley, 438. 



batteries, internal resistance meas- 

 ured, Peirce and Willson, 465. 



cell, standard, Clarke, Carhart, 402. 



charges, negative, dissipation by 

 sunlight and daylight. Elster and 

 Geitel, 411. 



lights compared photometrically, 

 100. 



radiation, 75, 217. 



resistance, B. A. unit, 230 ; of bat- 

 teries, 465. 



units, names adopted, 410; ratio 

 of electromagnetic to electrostatic, 289, 

 298. 



waves in conductors, 246. 

 Electricity, atmospheric, effect of solar 

 radiation on, 161. 



disruptive discharges in gases, Wolf, 



162. 



passage through gases. Shuster, 492. 



ratio of electromagnetic to electro- 

 static unit of, Rowland, Hall, and 

 Fletcher, 289; Rosa, 298. 



sewage purification by. 492. 



transmission of power by, Deprez, 

 411. 

 Elizabeth Thompson Science Fund, 



171. 

 Energy potentialized in permanent 

 changes of molecular configurations, 

 Barns, 193. 



radiant and electrical, Trowbridge, 

 217. 

 Engine, non-condensing steam, Nipher, 



281. 

 Ethnology, 6th annual Report of Bureau 

 of, 420. 



