INDEX TO VOLUME XIX 761 



PAGE 



Chamberlin, T. C. The Bearings of Radioactivity on Geology . . 673 



Chamberlin, Thomas C. and Rollin T. Certain Phases of Glacial 



Erosion ........... 193 



Clapp, Frederick G. A Proposed Classification of Petroleum and 



Natural Gas Fields Based on Structure. Review by E. R. L. . 383 

 Clark, William Bullock. Maryland Geological Survey, Vol. VIII, 1909. 



Review by E. R. L. . . . . . . . 479 



Cleland, Herdman F. The Fossils and Stratigraphy of the Middle 



Devonic of Wisconsin. Review by S. W. ..... 665 



Climate and Physical Conditions of the Keewatin. By A. P. Coleman 1 



Coleman, A. P. Climate and Physical Conditions of the Keewatin . 1 



Coming of Evolution, The: the Story of a Great Evolution. By John 



W. Judd. Review by W. H. H . 469 



Composition of Some Minnesota Rocks and Minerals, The. By 



Frank F. Grout. Review by Albert Johannsen . . . .183 



Cortege filonien des peridotites de la Nouvelle Caledonie, Le. By A. 



Lacroix. Review by F. C. Calkins ...... 465 



Corundum-Syenite (Uralose) from Montana, On. By Austin F. Rogers 748 

 Couyat, J. Les roches sodiques du desert arabique. Review by F. C. 



Calkins ........... 463 



Cretaceous and Tertiary Formations of Western North Dakota and 



Eastern Montana, The. By A. G. Leonard .... 507 

 Crider, Albert F. Mississippi State Geological Survey, 1907. Review 



by E. R. L 480 



Cushing, H. P., and E. O. Ulrich. Age and Relations of the Little Falls 



Dolomite (Calciferous) of the Mohawk Valley. Review by E. R. L. 667 



Dakota-Permian Contact in Kansas, The. By F. C. Greene. Review 



by E. R. L 382 



Dale, T. Nelson. The Cambrian Conglomerate of Ripton in Vermont. 



Review by Albert Johannsen . . . . . . .182 



Daly, Reginald A. Magmatic Differentiation in Hawaii . . . 289 



De Ballore, Conde Fernando de Montessus. Seismic History of the 



Southern Andes (Historia sismica de los Andes Meridionales.) 



Review by W. H. H 757 



De Lapparent, Jacques. Les gabbros et diorites de Saint-Quay- 



Portrieux et leur liaison avec les pegmatites qui les traversent. 



Review by F. C. Calkins ........ 184 



Derby, Orville A. Speculations regarding the Genesis of the Diamond 627 

 Descriptive Mineralogy, with Especial Reference to the Occurrences and 



Uses of Minerals. By Edward Henry Kraus. Review by W. H. E. 281 

 Differentiation of Keweenawan Diabases in the Vicinity of Lake 



Nipigon, The. By E. S. Moore 429 



Dowling, D. B. The Edmonton Coal Field, Alberta. Review by 



W. A. T 477 



