INDEX. 



525 



OBITUARY. 



Abney, Sir W. de W., 214. 



Bumstead, H. A., 214. 



Burnham, S. W., 380. 



Cain, J. C„ 380. 



Delage, Y., 96, 214. 



Fernald, C. H., 380. 



Field, I. A., 380. 



Fletcher, L., 294. 



Houssay, F., 294. 



Howard, W. A., 214. 



Margules, M., 96. 



Miyake, T., 380. 



Muirhead, A., 294. 



Nathorst, A. G., 380. 



Riddle, L. W., 294- 



Sedgwick, W. T., 294. 



Skiff, J. v., 380. 



Struve, K. H., 96. 



Toldt. C, 380. 



Unfreville, P. S.. 214. 



Wright, G. F., 520. 

 Observatory, Allegheny, publica- 

 tions, 96; Leander McCormick, 



293; Princeton, 293; U. S. Naval, 



293; Washburn, 293; Yerkes, 



293- 

 Occult Teaching, Sinnett, ^il^- 

 Ohio, Dunkard Series, Stauffer and 



Schroyer, 370. 

 Oil, Fuel, in Industry, Andros, 89. 

 — in Texas. Beede, 372. 

 Oklahoma, Stanley shale, Honess, 



63. 

 Ore deposits. Utah, Butler, Lough- 



lin, et al. 214. 

 Oriskany sandstone faunule, Eaton, 



427. 

 Orogeny, Rocky Mountain, Dake, 



245. 

 Osgood, W. F., Calculus, 457. 

 O'Shea, L. T., Chemistry, 208. 



Pacific Scientific Conference, 1920. 



379- 

 Page, L., obituary notice of H. A. 



Bumstead, 469. 

 Palaeolagus, an extinct hare, Trox- 



ell, 340. 

 Paleobotany^ Coleman, 315. 

 Palms, petrified. North American, 



Stevens, 431. 

 Patten, B. M., Embryology of the 



Chick. 462. 

 Penck, W., Siidrand der Puna de 



Atacama, 92. 

 Permian of Coahuila, New Mexico, 



Bose, 187. 

 — of England, structures in, Holte- 

 dahl, 195. 



Petrology, Nomenclature, Holmes, 



375- 



Phase rule and decomposition of 

 salts, Rengade, 364. 



— Theory, Clibbens, 281. 



Physics, Watson, 368. 



Pierce, W. D., Sanitary Entomo- 

 logy, 461. 



Platinum Deposits of the Ural Mts., 

 Duparc, 515. 



Poisons, etc. Detection, Autenrieth 

 and Warren, 467. 



Popocatepetl, in activity, Waitz, 

 81. 



Potamogeton from Upper Creta- 

 ceous, Berry, 420. 



Princeton Observatory, 293. 



Priestley in America, 1794-1804, 

 Smith, 279. 



Promerycochceri, John Day, 



Thorpe, 215. 



Queensland Museum, 292. 



Ravn_, J. P. J., Cretaceous Inverte- 

 brates of Greenland, 93. 



Raymond, P. E., Trilobites, 512. 



Read, C, Origin of Man, 380. 



Reynaud, P., Systeme Solaire, 210. 



Relativity, Eddington, 457; Carr, 

 458; Petzoldt, 283. 



Rocky Mountain Orogeny, Dake, 



24s. 

 Roscoe, Chemistry, 365. 

 Rose, J. W., Cactaceae, 463. 



Sands, musical, Wilson, z^(i. 



Schorlemmer, Chemistry, 365. 



Schuchert, C, Evolution of Geolo- 

 gic Climates, 320. 



Science News Bulletin, 467. 



Shannon, E. V., boulangerite, 423; 

 orientite from Cuba, 491. 



Sinnett, A. P., Occult Teaching. 



Slosson, E. E., Chemistry, 209. 



Smith, E. P., Priestley in America, 

 1 794- 1 804, 279. 



— Erwin F., Bacterial Diseases of 

 Plants, 464. . 



Smithsonian Institution, report, 95. 



Solar System, Reynaud, 210. 



Spiritualism, Carter, 376. 



Springer, F., Crinoidea flexibilia, 

 369. 



Stability, orbital. Taylor, 295. 



Stevens, F. L., Diseases of Econo- 

 mic Plants, 465. 



