INDEX. 



475 



MINERALS. 



Petterdite, 466. Plumbojarosite, 



New Mexico, 213. 

 Stibiotantalite, 466. 

 Xenotime, 316. 



Missouri, evolution of the lowlands 

 of soutlieastern, Marbut, 392. 



Mt. Pelee, 312, 319 ; peculiar char- 

 acter of the eruption of May 8th, 

 VerriU. 72. 



N 



New York, Syracuse, eruptive dikes 



in, Schneider, 24 ; petrography of 



dikes, Smyth, 26. 

 — Western, pleistocene geology of, 



Fairchild, 393. 

 Nile cataracts, black color of rocks 



in, Lortet and Hugounenq, 64. 

 Noyes, A. A., General Principles of 



Phy-sical Science, 457. 

 Nucleus, velocity and structure, 



Baras, 225 ; ionization of, Barus, 



459. 



OBITUARY. 



Gladstone, J. H., 470. 



Kedzie, E. C, 470. 



Powell, J. W., 377. 



Eiva, Dr. Carlo, 166. 



Eood, O. N., 470. 



Eubenson, E., 470. 



Virchow, Eudolph, 318. 

 Olsen, J., free ions in aqueous solu- 

 tions of electrolytes, 237. 

 Ontario, syenites in, Coleman, 147. 

 Optics, theory of, Drude, 68. 

 Ostwald, W., Lehrbuch der Allge- 



meinen Chemie, 457. 

 Ostwald's Klassiker der Exakten 



Wissenschaften, 76, 470. 

 Ozone, electromotive force of, Brand, 



386. 



Penfield, S. L., solution of problems 



in crystallography, 249. 

 Phelps, I. K., titrimetric estimation 



of nitric acid, 440. 

 Phonetics, Elements of Experimen- 

 tal, Scripture, 387. 

 Physical Geography, Gilbert and 



Brigham, 398 ; Elementary, Davis, 



318. 

 — Science, General Principles of, 



Noyes, 457. 

 Pirsson, L. V., Chemico-mineralogi- 



cal Classification of Igneous Eocks, 



461. 



Plowman, A. B., relation of plant 

 growth to ionization, 129. 



Porto Rico, actinians of, Duerden, 

 74. 



Powell, John Wesley, obituary no- 

 tice. Brewer, 377. 



Prescott, Qualitative Chemistry, 65. 



Quebec, petrographical contribution 

 to the geology of. Dresser, 43. 



Queneau on size of grain in igneous 

 rocks, 70 : Lane, 393. 



Radio-active bismuth, Marckwald, 

 303. 



— substances, Eutherford and Grier, 

 "387 ; radiations, Eutherford and 

 Brooks, 326. 



Radioactivity in air, Thompson, 387. 



Rinne, F., Gesteinskunde fiir Tech- 

 nicker, etc., 463. 



ROCKS. 



Dahamite, Pelikan, 397. 

 Eleolite syenite, Morozewicz, 396. 

 Mariupolite, Morozewicz, 396. 

 Nepheline syenites, Ontario, 147. 

 Syenites, Ontario, 147. 

 Rood, O. N., electrical resistance of 

 glass, quartz, etc., 161. 



St. Vincent and Martinique, erup- 

 tions of 1902, 72, 312 ; Hovey, 319. 



Scientia, 76. 



Scientific Literature, International 

 Catalogue, 317. 



Schneider, P. F., eruptive dikes in 

 Syracuse, New York, 24, 



Scripture, E. W., Elements of Ex- 

 perimental Phonetics, 387. 



Self-induction, role of in discharges 

 of electricity through gases, Egin- 

 Itis and de Gramont, 68. 



Sellards, E. H., fronds of Crosso- 

 theca and Myriotheca, 195 ; validity 

 of Idiophyllum rotundifolium, 203. 



Smithsonian Institution, annual re- 

 port, 1901, 469 ; publications of, 

 76. 



Smyth, C. H. Jr., petrography of 

 dikes in Syracuse, N. Y., 26. 



South Dakota, mineral resources, 

 O'Harra and Todd, 397. 



Spark discharge from metallic poles 

 in water, Wilsing, 67. 



