INDEX TO VOLUME XXX 737 



PAGE 



Upper Cretaceous Floras of the Eastern Gulf Region in Tennessee, 

 Mississippi, Alabama, and Georgia. By E, W. Berry. Review 

 by A. C. N 722 



Visher, Stephen Sargent. The Time of Glacial Loess Accumulation 

 in Its Relation to the Climatic Implications of the Great Loess 

 Deposits: Did they Chiefly Accumulate during Glacial Retreat? . 472 



Vogt, J. H. L. The Physical Chemistry of the Crystallization and 



Magmatic Differentiation of Igneous Rocks. V . . . .611 

 VI 659 



Weller, Stuart, with the collaboration of Charles Butts, L. W. Currier, 



and R. D. Salisbury. The Geology of Hardin County and the 



Adjoining Part of Pope County. Review by A. C. McF. . 257 



Wentworth, Chester K. Adapting a Short-BeUows, RoU-Film Kodak 



for Detail Work in the Field 158 



. A Scale of Grade and Class Terms for Clastic Sediments . . 377 



Westgate, L. G. Deposits of Iron Ore near Stanford, Montana. 



Review by E. S. B 335 



West Virginia Geological Survey. New Edition of Coal, Oil, Limestone, 



and Iron Ore Map. Author's Abstract 418 



White River Badlands, The. By Cleophus C. O'Harra. Review by 



R. D. S 331 



Wilson, Alfred W. G. Potash Recovery at Cement Plants. Review by 



E. S. B 412 



Wilson, M. E. Geology and Mineral Deposits of a Part of Amherst 



Township, Quebec. Review by J. F. W 419 



. Magnetite Deposits of Grenville District, Argenteuil County, 



Quebec. Review by J. F. W S°i 



. Timiskaming County, Quebec. Review by J. F. W. . . 413 



World Atlas of Commercial Geology; Part I, Distribution of Mineral 



Production. By Unites States Geological Survey. Review by 



Harlan H. Barrows 650 



Wrather, W. E. Dinosaur Tracks in Hamilton County, Texas . . 354 



Yilgarn Goldfield, Maps and Sections to Accompany Report on the 

 Geology and Mineral Resources of the. By Geological Survey of 

 Western AustraUa. Review by A. C. McF 84 



Zinc Ores of Edwards District, St. Lawrence County, New York, 



Genesis of the. Review by J. F. W 418 



