514 



INDKX. 



Physics, General, Crew, 501. 



— Problems in, Henderson, 500. 



— Technical, Arnold, 487. 



— Textbook, Duff. 4:SG. 

 Pidduck, F. B., Eleotrioifcy, 79. 

 Pogue, J. E., emerald deposits of 



Muzo, Colombia, 85. 

 Porter, L., detection and separation 



of tellurium, arsenic, etc., 106. 

 Powers, S., volcanic domes in the 



Pacific, 261. 



Radio-lead, density, from cleveite, 



Richards and Wadsworth, 365. 

 Richardson, O. W., Emission of 



Electricity from Hot Bodies, 369. 

 Ridgway, R., Birds of No. America, 



86. 

 Robinson, W. I., Paleozoic Alcyona- 



rian Tuniularia, 162. 

 Rocks, Igneous, of Carrizo Mountain, 



Arizona, Emery, 349. 

 Russell, E. J., Soils and Manures, 



283. 



Schaller, W. T., mineralogic notes, 



85. 

 Schuchert, C, continental fracturing 



and diastrophism in Oceanica. 91 ; 



pre-Cainbrian nomenclature, 475. 

 Sellards, E. H., fossil human re- 

 mains, discovery in Florida, 1 ; new 



tortoise from Florida, 235. 

 Simpson, G. S., detection and 



separation of tellurium, arsenic, 



etc., 106. 

 Smith, A. J., Chemistry of Metabol- 

 ism, translation, 442. 

 Smith, C. M., lead-ehlor arsenate, 



139. 

 Smith, W. D., radiolarian cherts in 



Oregon, 299, 504. 

 Soils and Manures, Russell, 283. 

 Spectra, rotation of interference 



fringes, Barus. 63. 

 Spectrum interferometry, Barus. 



403. 

 — lines, structure of broadened , Mer- 



ton, 77. 

 Spencer, S. R., separation of cfesium, 



etc., 279. 

 Steiger, G., sulphatic cancrinite 



from Colorado, 332. 

 Stevens, W. C., Plant Anatomy, 



284. 

 Stromboli, lava eruption, 1915, Per- 



ret, 443. 



Thermochemistry of silicon, Mixter, 

 125. 



Thornton, W. M. Jr., separation of 

 thorium from iron, 151. 



Thorp, F. H., Industrial Chemistry, 

 165. 



Tothill, J. D., ancestry of insects. 

 373. 



Treadwell, F. P., Analytical Chem- 

 istry, 74. 



Trilobites, ancestry, Tothill, 373. 



Troxell, E. L., early Pliocene one- 

 toed horse, 335. 



Turner, W. A., separation of vana- 

 dium, 109. 



U 



Uhler, H. S., electrolysis etc., of 



gallium, 389. 

 United States Bureau of Mines, 83. 



— Coast Survey, Centennial celebra- 

 tion, 505. 



— Geol. Survey, 440. 



Van Name, R. G., solution of metals 

 in ferric salts, 301. 



Van Tuyl, F. M., geodes of the 

 Keokuk beds, 34 ; origin of dolo- 

 mite, 249. 



Vapors, fluorescent. Silberstein, 499. 



Verwiebe, W. A.. Berea formation 

 of Ohio, etc, 43. 



Virginia, geol. survey, 82. 



Volcanoes, domes in the Pacific, Pow- 

 ers, 261 ; lava eruption of Strom- 

 boli, 1915, Perret, 443. 



Von Fiirth, O. , Chemistry of Metab- 

 olism, 442. 



Vosmaer, A., Ozone, 432. 



W 



Walcott, C. D., Cambrian forma- 

 tions of Montana, 372 ; Cambrian 

 Trilobites, 439. 



Walker Museum, Contributions, 82. 



Warren, C. H., sphere for crystal 

 optics problems, 493. 



Washington, Eocene and post- 

 Eocene formations, Weaver, 81. 



West Virginia Geol. Survey, 503. 



Wieland, G. R., Flora Liasica de la 

 Mixteca Alta. 370. 



Williams, H. S., fauna of Chapman 

 Sandstone of Maine, 169. 



Wisconsin, physical geography, 83. 



