INDEX TO VOLUME XXIII 797 



PAGE 



Koyukuk-Chandalar Region, Alaska, The. By A. G. Maddren. Re- 

 view by V. O. T 480 



Krebs, C. E. West Virginia Geological Survey. Cabell, Wayne and 

 Lincoln Counties. Marion, Monongalia and Taylor Counties. 

 By Ray V. Hennen. Review by T. T. Q 92 



Krystallisationskraft. By Raphael Ed. Liesegang. Review by 



E. A. S 287 



Lake Agassiz, Revision of the Map of. By Warren Upham . . . 780 

 Lake Superior Highlands: Their Origin and Age. By Charles Keyes 569 

 Late Tertiary History of the Upper Missouri River, A Sketch of the. 



By Clyde Maxwell Bauer 52 



Leffingwell, E. De K. Ground-ice Wedges. The Dominant Form of 



Ground-ice on the North Coast of Alaska 635 



Leith, C. K., and R. C. Allen. Discussion of Correlation of the Pre- 

 Keweenawan Formations of the Eastern Gogebic Iron Range of 



Michigan 703 



Leith, C. K., and W. J. Mead. Metamorphic Studies. Convergence 



to Mineral Type in Dynamic Metamorphism 600 



Leverett, Frank. Review of The Antiquity of Man in Europe. By 



James Geikie 282 



Liesegang, Raphael Ed. Krystallisationskraft. Review by E. A. S. 287 

 Lloyd, E. Russell, and C. J. Hares. The Cannonball Marine Member 

 of the Lance Formation of North and South Dakota and Its Bear- 

 ing on the Lance-Laramie Problem 523 



Maddren, A. G. The Koyukuk-Chandalar Region, Alaska. Review 



byV. O. T 480 



Manhattan Schist, The, of Southeastern New York State and Its Asso- 

 ciated Igneous Rocks. By Charles Reinhard Fettke. Review by 

 V. O. T 382 



Map of Lake Agassiz, Revision of the. By Warren Upham . . 780 



Matthew, W. D. Climate and Evolution. Review by T. C. C. . . 477 



Mead, W. J., and C. K. Leith. Metamorphic Studies. Convergence to 



Mineral Type in Dynamic Metamorphism 600 



Mehl, M. G. Poposaurus gracilis, a New Reptile from the Triassic of 



Wyoming 5^6 



. Review of Water ReptUes of the Past and Present. By S. W. 



Williston 94 



. The Phytosauria of the Trias 129 



Metamorphic Studies. Convergence to Mineral Tj^e in Dynamic 



Metamorphism. By C. K. Leith and W. J. Mead .... 600 



Miller, Benjamin L. Graphite Deposits of Pennsylvania. Review 



byT. T. Q 286 



Miller, Willet G., and Cyril W. Knight. Revision of Pre-Cambrian 



Classification in Ontario 585 



Minas Geraes, Brazil, The Geology of Central. By E. C. Harder and 



R. T. Chamberlin 341,385 



Mineral Reserves, Our. By G. O. Smith. Review by A. D. B. . . 383 



