550 



INDEX 



*0)d erosion surface in eastern Utah. 



J. B. Umpleby, 109 

 *Pawpaw-Hancock, Md., W. Va., Pa., 



folio. G. W. Stose and C. K. 



Swartz, 410 



*Phil. geology. W. D. Smith, 427 

 *Potash-bearing rocks, Leucite Hills, 



Sweetwater County, Wyoming. A 



R. Schtjltz and W. Cross, 159 

 *Richmond, Va., and vicinity. N. H. 



Darton, 100 

 *Rocks, Preston, Conn. G. F. Lough- 



lin, 408 



San Rafael Swell, Utah. C. T. Lttp- 



ron, 185 

 *Sitka mining district, Aka. A. 

 Knopf, 161 



Stratigraphy of Idaho. J. B. Umple- 



by, 49 

 *Structure of the foothills of the 

 Front range, Central Col. G. B. 

 Richardson, 429 

 *Tertiary gravels of the Sierra Nevada 

 of California. W. Lingren, 191 

 Volcanic ash. P. S. Smith, 406 

 — See also: Economic geology; Pe- 

 trology 



Geophysics. See also Hydrology. 

 Helminthology. Further notes on Tri- 



coma. N. A. Cobb, 480 

 Hydrology. *Ground water in Juab, 

 ■ Millard, and Iron counties, Utah. 

 O. E. Meinzer, 226 

 *Water analyses. H. Stabler, 158 

 *Water resources of Eastancia Valley, 



N. Mex. O. E. Meinzer, 226 

 References, 356, 392 

 Law. References, 356 

 Magnetism. *Pole distance of a mag- 

 net. J. M. Miller, 140 

 Mathematics. Algebra of physics, I, 

 II, III. A. Macfarlane, 331, 363, 

 395 

 Circular functions. C. E. Van Ors- 

 trand, 299 

 Meteorology. Clouds and radiation. H. 

 H. Kimball and E. R. Miller, 377 



*Daily changes in temperature up to 



4,000 meters. A. J. Henry, 486 

 Diurnal variations. W. J. Hum- 

 phreys, 372 

 Dust layers and polarization. W. 

 J. Humphreys, 241 



*Earth's radiation zones. W. J. Hum- 

 phreys, 99 



*Echelon clouds. W. J. Humphreys, 

 317 



*Free air data at Indianapolis, Omaha 

 Huron. W. R. Blair, 315 



*Free air data at Mt. Weather, Apr.- 

 June, 1911. W. R. Blair, 153 



*Free air data at Mt. Weather for 

 July-Sept., 1911. W. R. Blair, 

 316 

 Haze of June, 1912. H. H. Kimball, 

 402 



Holes in the air. W. J. Humphreys, 

 243 



Hurricanes of the West Indies. O. 



L. Fassig, 246 

 *Interferometer barograph. A. C. 



Crehore and G. O. Squire, 133 

 *Isothermal region, W. J. Humphreys 



153 

 *Light of the sky. C. A. Abbot, 229 

 Solar radiation. H. H. Kimball and 



E. R. Miller, 411 

 *Temperature at Mt. Weather, Va. 



A. J. Henry, 268 

 *The upper atmosphere. W. J. Hum- 

 phreys, 316 

 References, 272, 392 

 Mineral resources. *Natural phos- 

 phates of Tenn., Ky., and Ark 

 W. H. Waggaman, 325 

 *Phosphate fields of Florida. W. H. 

 Waggaman, 325 

 Mineralogical chemistry. *Mineral sul- 

 phides of iron. E. T. Allen, J. L. 

 Crenshaw and J. Johnston, 9 

 Mineralogy. An aluminum arsenate 

 from Utah. F. W. Clarke, 516 



Crystallography of variscite. W. T. 

 Schaller, 143 



