528 



INDEX. 



Metals, lowering of freezing point, 

 Heycock and Neville, 230. 



Nitrosyl chloride, emission-spectrum, 

 Magnanini, 518. 



Oxygen, dissolved in water, Thresh, 

 398. 



Periodic law, Mendeleeff, 147. 



Platinic fluoride, preparation, Mois- 

 san, 315. 



Potassium and sodium, combination 

 with ammonia, Joannis, 315. 



Selenium chlorides, Chabrie, 231. 



Silver silicate, formation, Hawkins, 

 311. 



Sodium carbonate, made by electroly- 

 sis, 232. 



Solutions, nature of, Pickering, 391. 



Vapor-density, below boiling point, 

 Demuth and Meyer, 312. 



Xylose or wood-sugar, Wheeler and 

 Tollens, 315. 

 Clarke, J. M., development of some 



Silurian Brachiopoda, 7 1 ; the Her- 



cynian question, 155 ; compound eyes 



of arthropoda, 409. 

 Convection, electromagnetic effect of, 



Himstedt, 153. 

 Cook, C. S., mountain study of the spec- 

 trum o£ aqueous vapor, 258. 

 Corals and Coral Islands, J. D. Dana, 



326, 410. 

 Cornish. Archaean rocks about Norfolk, 



Ct., 321; glacial scratches, 321. 

 Cramer, P., recent rock flexures, 220. 

 Cross, W., secondary minerals of amphi- 



bole and pyroxene groups, 359. 



D 



Dana, E. S., barium sulphate from Per- 

 kin's Mill, 61 ; minerals of Branch- 

 ville, Ct, 201; tyrolite from Utah, 

 271. 



Dana, J. D., Sedgwick and Murchison, 

 Cambrian and Silurian, 167, 237 ; work 

 on Characteristics of Volanoes, with 

 facts from the Hawaiian Islands, 323 ; 

 Archaean axes of eastern N. America, 

 378; red color of some sandstones, 

 318 ; Corals and Coral Islands, of, 

 noticed, 326, 410. 



Darton, N. H., basalt dikes in central 

 Appalachian Virginia, 269. 



Davis, W. M., geographic development 

 of northern N. Jersey, 404; trap 

 sheets of Connecticut Valley, 404. 



Dawson, G. M., Cretaceous of British 

 Columbia, Nanaimo group, 180. 



Dawson. J. W., notice of "Fauna der 

 Gaskohle," etc., 405 ; fossil plants from 

 Mackenzie and Bow Rivers, 406. 



Depths, see Ocean.* 



Diller, J. S., gold in calcite, 160; basalt 

 of central Appalachian Virginia, 269. 



Dust in the atmosphere, Aitkin, 316. 

 Dwight, W. B., fossils of Dutchess Co., 

 N. Y., 71. 



E 



Eakins, L. G., new stone meteorite, 59 : 



meteoric iron from N. Carolina, 395. 

 Earth's rigidity, proof of, Becker, 336. 

 Eaton, D. C, notice of Gray's Manual, 



240. 

 Electricity, absolute measurements in, 



Gray, 235. 

 in Modern Life, de Tunzelmann, 



401. 



Elementary Lessons in, Thompson, 



235. 

 Electric oscillatory discharge, 519. 



potential, measured by work, Mayer, 



334. 



undulations, Sarrasin and De la Rive, 



233. 



vibrations, in rarefied air without 



electrodes, Moses, 400. 

 Electrometer, pendulum, experiments 



with, Mayer, 327. 



spring-balance, Mayer, 513. 

 Energy, radiant, of standard candle, 



Hutchins, 392. 

 Engler, A., Die naturlichen Pflanzen- 



familien, 75. 

 Evolution, divergent, and the Darwinian 



theory, Gulick, 21. 



of the Arietidse, Hyatt, 243. 



Ferrel, W., Weber's law of thermal 



radiation, 137. 

 Foerste, A. F., Cambrian from Nahant, 



Mass., 71. 

 Fontaine, W. M., Potomac Flora, 520. 

 Fossil, see Geology. 

 Fritsch, A., Fauna der Gaskohle, etc., 



405. 



G 



Ganong, W. F., economic Mollusca of 

 New Bruswick, 163. 



Gas, rock pressure on natural, in Ohio, 

 Orton, 225. 



Gas volumes, determination of, Lunge, 

 396. 



Gems and Precious stones of N. A., 

 Kunz. 521. 



Genth, F. A., contributions to miner- 

 alogy, No. 46, 47 ; Jarosite from 

 Utah, 73 ; Lansfordite, Nesquehonite, 

 121. 



Geodesy, Bibliography of, Gore, 80. 



Geological Society of America, 158, 402. 



Geological Record for 1880-1884, 324. 



Geological Reports and Surveys — 

 Canada, 1887-88, Selwyn, 238. 

 Minnesota, 1888, N. H. Winchell, 67. 



