INDEX. 



587 



Galton, F., 248. 

 Howell, E. K, 468. 

 Jones, T. R., 582. 

 Meyer, M. W., 248. 

 Richards, Mrs. E. H., 468. 

 Scudder, Samuel H., 582. 

 Van Bemrnelen, J. M., 468. 

 Van't Hoff, J. H.. 340. 

 Observatory, Allegheny, publica- 

 tions, 247. 



— Cincinnati, publications, 581. 



— Harvard, publications, 581. 



— Lick, determination of Solar Paral- 

 lax, 153. 



— Princeton, publications, 581. 



— Yale, transactions, 152. 

 Ocean, see Sea. 



Ohio geol. survey, 462. 

 Optics, Geometrical, Soiithall, 233. 

 Osborn, H. F., Age of Mammals, 150. 

 Ostwald's Klassiker der Exakten 

 Wissenschaften, 248. 



Palache, C, chemical composition of 

 parisite., etc., 533. 



Palaeontologia Universalis, 242. 



Palaeontological contributions to 

 the geology of "West Australia, 239. 



Phillips, A. H., on zincite crystals, 

 464. 



Photographic atlas of terrestrial re- 

 lief, 334. 



Photography of fossils by reflected 

 light, Burling, 99. 



Physik, die Stellurig der neueren. 

 Planck, 232. 



Pirsson, L. V., geology of Tripyra- 

 mid Mountain, N. H., 269; petrog- 

 raphy of Tripyramid Mountain, N. 

 H., 405. 



Polonium, ionization bv a-particles 

 from, Taylor, 249. 



Positive electricity, Thomson, 455. 



— rays, Wien, 77. 



Powell, S. L., age of Virginia 

 Piedmont slates, 33. 



Princeton Observatory, see OBSER- 

 VATORY, 580. 



Radio-active substances, heat gener- 

 ated by, Duane, 257. 



Radium, deflections of electrostatic 

 fields, etc., by, Russ, Makower, and 

 Evans, 78. 



Rays, positive, Wien, 77. 



— of positive electricity, Thomson, 

 455. 



Refrigeration by mixtures of liquids, 

 Duclaux, 77. 





Rice, W. N., geology of Tripyramid 

 Mountain, N. H., 269. 



ROCKS. 



Analcite rocks, Tyrrell, 81. 



Granites of the southeastern Atlan- 

 tic states, Watson, 80. 



Nelsonite, Virginia, 218. 



Petrography of Tripyramid Moun- 

 tain, N. H., Pirsson, 405. 



Quartzite, Lavras, Brazil, 482. 

 Robbins, E. R., Plane Trigonometry, 



248. 

 Roberts, E. J., separation of cerium 



by potassium permanganate, 350. 

 Robinson, E. van D., Geography, 



467. 

 Rogers, G. S., gneissoid structure in 



the Cortlandt series, 125. 

 Roentgen radiation from vapors, 



571. 

 — rays, velocity measurement, Marx, 



148. 

 Rowe, J. R., Practical Mineralogy, 



337. 



St. Helen's breccias, fossil faunas, 



Williams, 24. 

 Schaller, W. T., natramblygonite, 



new mineral, 49 ; thaumasite from 



Utah, 131. 

 Sea, deep, origin and peopling of, 



Walther, 55. 

 Seas, investigation of Italian, 581. 

 Seismological Society of America, 



247, 466. 

 Smiles, S., Chemical Constitution 



and Physical Properties, 77. 

 Smithsonian Institution, annual re- 

 port, 155, 246. 

 Solar parallax, determination, Per- 



rine, 153. 

 Solenhofen, new Elasmobranchs 



from, Eastman, 369. 

 Sosman, R. B., melting points of 



minerals, 341. 

 South Africa, Prehistoric Period, 



Johnson, 578. 

 South Dakota, badlands formation, 



237. 

 Southall, J. P. C, Geometrical Op- 

 ties, 233. 

 Standards, Bureau of, bulletin, 578. 

 Stevens, W. C, Plant Anatomy, 243. 

 Stoddard, J. TV, General Chemistry, 



454. 

 Solutions, absorption spectra of, 



Jones and Strong, 333. 

 Suess, E., paleogeography of North 



America, 101. 

 Sweden, Silurian, Moberg, 460. 



