530 



INDEX. 



Geology — 



Rock-fracture at Appleton, "Wis., Cra- 

 mer. 432 : Reade. 409. 

 Saganaga syenite, Winchell, 386. 

 Siliceous sinter formed by vegetation 



of hot springs, Weed, 158. 

 Silurian, Lower, fish remains in, Wal- 



cott, 245. 

 Tertiary insects of Xorth America, 



Scudder, 517. 

 Triceratops, restoration of, Marsh, 339. 

 Trilobites of Upper Carboniferous, 



Kansas. 517. 

 Volcanic rocks of Tewan Mountains, 

 Iddinffs, 248. 

 Gilbert, GT K., Lake Bonneville. 327. 

 Goldschmidt, V., Index der Krystallfor- 



men. 253. 441. 

 Gore, J. H.. decimal system of the 



seventeenth century. 22. 

 Gray's Manual of Botany, Watson and 



Coulter, 44. 

 Greene, E. L.. West American Oaks, 333. 



H 



Hatch. F. H., Introduction to study of 



Petrology. 517. 

 Headden. W. P., columbite and tanta- 



lite from the Black Hills, 89; black 



rutile. 249 ; phosphates from the 



Black Hills. 115. 

 Heat of the moon and stars, Boys, 70. 

 Helmholtz medal. 521. 

 Hidden. W. HJ.. polycrase of Xorth and 



South Carolina, 423 ; mineralogical 



notes, 438. 439. 

 Hjelt. E.. general organic chemistry. 



242. 

 Hot water and its solvent action on 



glass, Barns. 110. 

 Howell E., new meteorites, 52. 

 Hyatt, A., Insecta, 256. 



Ice, effects of pressure on, Wood. 30. 

 iddings. J. P.. volcanic rocks of Tewan 



Mts., N. Mexico. 248, 441. 

 Insecta, Hyatt and Arms, 256. 

 Irelan, W., State mineralogist report for 



California. 1890. 440. 



K 



Kentucky, geological survey, 435. 

 Keyes, C. R., Perisomic Plates of the 



Crinoids. 247 ; redrock sandstone of 



Marion County. Iowa, 273. 

 Kilauea, Hawaii, recent eruption of. 



Baker, 336, 443: Brigham, 507; 516. 

 Kountze. A. F., Alaska garnet. 332. 

 Krystallformen. Index, Goldschmidt, 



253, 441. 

 Kryst.-chemische Tabellen. Fock, 255. 

 Kunz, G. F., diamonds in Wis., 252. 



Lancaster, A., list of observatories and 



astronomers, 76. 

 Landero, C. F. de, Mexican grossularite, 



321 ; Sinopsis mineralogica, 538. 

 Lea, M. C, allotropic silver, 179, 259, 



482. 

 Lindeukohl, A., post-glacial subsidence 



of middle Atlantic coast, 489. 

 Lydekker, R., catalogues of the British 



Museum, 5. 



M 



Mackintosh, J. B., polycrase of North 

 and South Carolina, 423 ; mineralog- 

 ical notes, 438 ; obituary of, 444. 



Magnetic screening of conducting media, 

 Borgman, 516. 



Magnetism, terrestrial, Bigelow, 76. 



Mar, F. W.. estimation of barium as 

 sulphate. 288. 



Marsh. O. C, Horned Artiodactyle from 

 the Miocene, 81 ; gigautic Ceratop- 

 sidse of Xorth America, 167; restora- 

 tion of Triceratops, 339. 



Mathematische Abhandlungen, Schwarz, 

 80. 



Mayer, A. M.. illuminating power of flat 

 petroleum flames. 52 ; physical prop- 

 erties of vulcanite, 54. 



Mechanical equivalent of heat, Sahulka, 

 155. 



Melting-point apparatus, Christomanos, 

 68. 



Melville, W. H., powellite, calcium 

 molybdate, 138; diaspore crystals, 

 475. 



Meriden Scientific Association, 257. 



Merrill, F. J. H., post-glacial history of 

 the Hudson River valley, 460. 



Merritt. E., galvanometer used with the 

 thermopile, 417. 



Meteorite, Crema, Italy, 235. 



Meteorites, iron, Mexican, Fletcher, 79. 

 new localities, Howell, 518. 



Miller, S. A., geological survey of Mis- 

 souri, 435. 



Mineralogica, Sinopsis, Laudero, 518. 



Mineralogical Report, California, 440. 



Mineralogie, chemische, Doelter, 441. 



Minerals from Snake Hill, X. J., Perry, 

 73. 



Minerals — 



Aguilarite, Mexico, 401. Alunite, 

 Colorado. 466. Auerlite, 438. Au- 

 richalcite. composition, Penfield, 

 106. Axinite, Mexico, 396 ; Frank- 

 lin. X. J., 394: X. Scotia, 397. 

 Azurite, Arizona, 300. 

 Bastnaesite, Colorado, 439. Bismuth- 

 inite, Mexico, 402. 



