INDEX. 



499 



Minerals — 



Chrysolite, 182. Corundum, struc- 

 ture-planes, 323. Crocoite, Tas- 

 mania, 389. Cuproiodargyrite, 

 Peru, 70. 



Epidote, Huntington, Mass, 26. 



Fayalite, Rockport, Mass., 129. 

 Feldspars in thin sections, 

 Michel-Levy, 402. 



Gold in granite, Merrill, 309. 

 Graphite in pegmatite, 50. 



Hastingsite, Hastings Co., Ont., 

 212. Hoeferite, Bohemia, 70. 

 Hortonolite, Orange Co., N. Y., ) 

 131. 



Jadeite, Thibet, 401. 



Kamarezite, Greece, 7. 



Lewisite, Brazil, 71. Lossenite, 

 Greece, 71. 



Mangano-columbite, Maine, 460. 

 Mauzeliite, Sweden, 71. Micro- 

 lite, Maine, 461. Monticellite, 

 Magnet Cove, Ark., 134. 



Pollucite, Maine, 457. 



Rubies, Burma, 64. 



Sperrylite, Ontario, 110. 



Thaumasite, West Paterson, N. J 



229. Tiffanyite, 



Tilasite, 



Sweden, 71. 



Wollastonite, Oneida Co., N. Y., 

 323. 



Zirk elite, Brazil, 71. 

 Missouri geol. survey, 1894, 149. 

 Molecules and Molecular Theory of 



Matter, Risteen, 57. 

 Moses, A. J., drawing of crystal 



forms, 462. 

 Murray, G., Study of Seaweeds, 74. 



N 



New Jersey geol. survey, 1894, 60. 

 New York Academy of Sciences, vol. 

 xiv, 77. 



State geol. survev, 1893, 61. 

 Nichols, E. L., Physics, 319. 

 Nies, Crystallography, 402. 

 North American Birds, Nehrling, 404. 



Obituary — 

 Bebb, M. S., 78. 

 Castillo, A. del, 78. 

 Krueger, 494. 

 Lawson, G., 78. 

 MiiUer, J., 326. 

 Wachsmuth, C, 250. 



Ortmann, A. E., climatic zones in 



Jurassic times, 257. 

 Ostwald's Klassiker, 77. 



Palache, C, crocoite from Tasmania, 

 389. 



Peckham, S. F., Trinidad pitch, 193. 



Peirce, A. W., iodometric determina- 

 tion of selenious and selenic acid, 

 31 ; separation of selenium from 

 tellurium, 181 ; gravimetric deter- 

 mination of selenium, 416. 



Pendulum observations, Putnam, 186. 



Penfield, S. L., chrysolite-fayalite 

 group, 129 ; thaumasite, West Pat- 

 erson, N. J., 229. 



Pennsylvania, geol. survey of, 488. 



Peters, E. D., Jr., Copper Smelting, 54. 



Petrography, new term proposed, 

 Pirsson, 150. 



Physical Geography, Tarr, 76. 



Physics, Nichols and Franklin, 319. 

 Experimental, Loudon and Mc- 

 Lennan, 141. 

 School, Avery, 57. 



Pirsson, L. V. new petrographical 

 term, 150; Bearpaw Mts., Mont. 

 283, 351. 



Pratt, J. H., thaumasite, West Pater- 

 son, N. J., 229. 



Preston, E. D., latitude determina- 

 tions, etc., in Hawaiian Is., 75. 



Putnam, G. R., pendulum observa- 

 tions, 186. 



R 



Radiation of a dark body, law of, 



Wien and Lummer, 56. 

 Rammelsberg, C. F., Mineralchemie, 



151. 

 Risteen, A. D., Molecules and Mole- 

 cular Theory of Matter, 57. 

 Robinson, F. C., Crookes tubes, 463. 

 Rocks — 



Gabbro in St. Lawrence Co., N. Y., 

 metamorphism, Smyth, 273. 



Mica-peridotites, Bengal, Holland, 

 400. 



Monzonite, Bearpaw Mts. , 355. 



Quartz-syenite, Bearpaw Mts., 295. 



Shonkinite, Bearpaw Mts., 360. 



Syenite, Bearpaw Mts., 352. 



Theralite, Costa Rica, Wolff, 271. 



Trachyte, Bearpaw Mts., 291. 



Trachytes, Ischian, Washington, 

 375. 



Yogoite, Bearpaw Mts., 355. 

 Rontgen's discovery, 394. 



