INDEX. 



479 



R 



Bafmesque, Icthyologia Ohiensis, 473. 

 Begnault's calorie, Starkweather, 13. 

 Eivers of North America, Eussell, 72. 

 Eock specimens distributed by the 



IT. S. Geol. Survey, Diller, 74. 

 Eockall Island, petrology, Judd, 241. 

 Eocks — 



Argillaceous, with quartz veins in 



Brazil, Derby, 343. 

 Clay slates, phyllites, etc., contact 

 metamorphism of, Clements, 81. 

 Euctolite, 399. 

 Granitic breccias of Grizzly Peak, 



Colo., Stone, 184. 

 Hatherlite, 318. 



Igneous rocks containing Paleotro- 

 chis, Diller, 337. 



Pre-Cambrian of Wisconsin, 

 Weidman, 398. 

 Mont Blanc petrography, Duparc 



and Mrazec, 242. ' 

 Norites, gabbros, etc., of Trans- 

 vaal, Leo Henderson, 317. 

 Olivine-melilite-leucite rock, Saba- 



tini, 399. 

 Phenocrysts of intrusive igneous 



rocks, Pirsson, 271. 

 Pilandite, 318. 

 Eockallite, 241. 

 Venanzite, 399. 

 Eollins, W., regenerating vacuum 



tubes, 159. 

 Eontgen-rays, absorption by air, 396. 

 and color blindness, Dorn, 159. 

 ions produced by, Thomson, 1 58. 

 vacuum tubes for, Eollins, 159. 

 Eosenbusch, H., Gesteinslehre, 73. 

 Eussell, I. C., Eivers of North Amer- 

 ica, 72. 



S 



Safford, J. M. , Camden chert of Ten- 

 nessee, 429. 



San Clemente Island, geological 

 sketch, Smith, 315. 



Sardeson, F. W. , What is the Loess ? 

 58. 



Schuchert, C, Camden chert of Ten- 

 nessee, 429. 



Smithsonian Institution, reports, 80, 

 246, 321, 402. 



Soils, analysis of, Means, 264. 



South Dakota geological survey, 316. 



Spectra, prismatic and diffraction, 

 Ames, 69. 



Spectrum of lightning, Toepler, 68. 



Springs, ther mo-mineral, De Launay, 

 474. 



Starkweather, G. P., Eegnault's cal* 

 orie, and specific volumes of 

 steam, 13 ; thermo-dynamic rela- 

 tions for steam, 129. 



Stars, Washington catalogue of, 321. 



Steam, specific volumes of, Stark- 

 weather, 13 ; thermodynamic rela- 

 tions for, Starkweather, 129. 



Stokes, H. N., analyses of biotites 

 and amphiboles, 294. 



Stone, G. H., granitic breccias of 

 Grizzly Peak, Colo., 184. 



Surface tension and density of aque- 

 ous solutions, etc., MacGregor, 313. 



Telescope objective, Hastings, 267. 

 Temperature, low, experiments, Hem- 

 pel, 392. 

 Tennessee, Camden chert of, Safford 



and Schuchert, 429. 

 Tennessee, university of, record of 



scientific engineering, 170. 

 Texas, geology of, Hill and Vaughan, 



70, 315. 

 Thermodynamic relations of hydrated 



glass, Barus, 1. 



relations for steam, Starkweather, 



13, 129. 

 Thermodynamics, Duhem, 68. 

 Thorp, F. H., Industrial chemistry, 



157. 

 Transvaal norites, gabbros, and py- 



roxenites, Leo Henderson, 317. 

 Trouessart, Catalogus mammalium, 



79. 

 Turner, H. W., rock-forming biotites 



and amphiboles, 294 ; roscoelite, 



455. 



U 



Ungava, Trenton rocks at, Whiteaves, 

 433. 



United States geological survey, re- 

 cent publications, 166. 



Uranium radiation, Eutherford, 238 ; 

 Becquerel, 471 ; source of, Crookes, 

 472. 



Vacuum tubes, regenerating, Eollins, 



159. 

 Valentine, W.. analyses of biotites 



and amphiboles, 294. 

 Vaughan, T. W., Lower Cretaceous 



Gryphaeas of Texas, 70. 

 Verrill, A. E., new Actinians, 41, 143, 



205, 375. 



