:.;<•■ 



rNDEX. 



U. S. Geol. Survey, 36th annual 

 report, :!71 ; publications, 371. 



— magnetic declination, Jan. 1. 1915, 

 Hazard, 466. 



— National Museum, 378. 



Utah, minerals from Tintic District, 

 Means, 125. 



V 



Vaughan, T. W., origin of barrier 

 coral reefs, 131. 



Very, F. W., transmission of terres- 

 trial radiation. 513. 



Volcano, see Kilauea, Mauna Loa. 



Von Richter, V., Organic Chemistry, 

 368. 



W 



Walcott,C. D., Cambrian Trilobites, 

 301. 



Washington, H. S., Charnockite 

 series of igneous rocks, 323. 



Washington, University of, Bureau 

 of Research, 471. 



Weld, L. D., Theory of Errors and 

 Least Squares, 562. 



West Virginia geol. survey, 373. 



Western Australia geol. survey, 566. 



White, W. P., switch for thermo- 

 element work, 307. 



Whittaker, E. T., Modem Ana 



•.".'7 : Edinburgh Matheiu 



Tracts. 298. 

 Williams, S. R., achromat* - 



101. 

 Williamson, E. D., forms ol ilcini 



carbonate, 473. 

 Wisconsin, aye of iron ore, Si 



and Ross, 187. 



— Fox-Winnebago Valley, 3"3 ! 



— geol. survey. 467. 



— peat resources. Huels, 225. 

 Wood, H. O., 1914 eruption of II< 



kuaweoweo, 383. 

 Wright, A. W., obituary q< 



152, 361. 

 Wyoming Historical and Geol. - 



ety proceedings, 381. 



X 



X-Rays, refraction, Barkla, 560. 



— spectra of iodine and tellurium, 

 Siegbahn, 465. 



ZOOLOGY 



Invertebrate. Pratt, 150. 



— Practical, Hegner, 150. 



— Crinoids, Existing, Clark, 150. 



— Edrioasteroidea, Bather, 302. 



