INDEX TO VOLUME XXXI 691 



PAGE 



Bastin, Edson S. Silver Enrichment in the San Juan Mountains, 



Colorado. Review by Charles H. Behre, Jr 256 



Bauer, Louis A. Chief Results of a Preliminary Analysis of the Earth's 



Magnetic Field for 1922. Abstract 680 



Beartooth Moimtains, Montana, Summary of the Geology of the. By 



Arthur Bevan 441 



Behre, Charles H., Jr. Review of Silver Enrichment in the San Juan 



Mountains, Colorado, by Edson S. Bastin 256 



— — ■ — . Review of The Shapes of Pebbles, by Chester K. Wentworth 161 



Beitrage zur petrographischen Erforschung des Unteren Buntsandsteins. 



Von Gustav Weiss. Review by Albert Johannsen .... 83 



Berry, Edward W. Contributions to the Paleobotany of Peru, BoHvia 



and Chile. Review by A. C. N 350 



Bevan, Arthur. Simimary of the Geology of the Beartooth Mountains, 



Montana 441 



Bibliography of Indian Geology, Part II. Index of Localities. Com- 

 piled by T. H. D. LaTouche. Book Notice 528 



Big Thompson River Valley in Colorado, The Physiographic Develop- 

 ment of the. By Margaret Bradley Fuller 126 



Blackwelder, Eliot. Review of Earth Evolution and Its Facial Expres- 

 sion, by William H. Hobbs 438 



Bosworth, T. O. Geology of the Tertiary and Quaternary Periods in 



the Northwest Part of Peru. Review by T. B. R 524 



Bradley, J. H., Jr. Geology of the Philipsburg Region of Quebec with 



Notes of Correlations with the Beekmantown 314 



Braintree, Vermont, The Geology and Mineralogy of. By Charles H. 



Richardson and Charles K. Cabeen. Review by A. C. McF. , 167 



Bretz, J Harlen. The Channeled Scablands of the Colimabia Plateau 617 



British Malaya, The Structural Geology of. By J. B. Scrivenor . . 556 



British (Terra Nova) Antarctic Expedition, 1910-1913. Glaciology. 



By C. S. Wright and R. E. Priestley. Review by T. C. C. . . 513 



Brooks, Charles F. Review of Physiography and Glaciology of Middle 

 West Greenland: Abstract of part of results of Swiss Greenland 

 Expedition, by Alfred de Quervain, P. L. Mercanton, and Others . 436 



Buddington, A. F. An Association of Kaolinite with MiaroKtic Structure 149 



Cabeen, Charles K., Charles H. Richardson and. The Geology and 



Mineralogy of Braintree, Vermont. Review by A. C. McF. . . 167 

 Campbell, Marius R. Guide Book of the Western United States, Part E. 



The Denver and Rio Grande Western Route. Review by R. T. C. 160 

 Canu, Ferdinand, and Bassler, Ray S. North American Later Tertiary 



and Quaternary Bryozoa. Review by G. Dallas Hanna . . . 686 

 Cenozoic of Northern China, Essays on the. By J. G. Andersson. 



Book Notice 616 



