INDEX TO VOLUME XXXI 701 



PAGE 



St. George, Quebec, The Devonian Limestone at. By Thomas H. Clark 217 

 Sammlung geologischer Fiihrer. Vol. XXII, Die Westtiroler Zentral- 



alpen, by WUhelm Hammer. Vol. XXIII, Helgoland und die imi- 



liegenden Meeresgriinde, by Otto Pratje. Review by R. T. C. . 689 

 Sampson, Edward. The Ferruginous Chert Formations of Notre Dame 



Bay, Newfoundland 571 



San Juan Mountains, Colorado, SUver Enrichment in the. By Edson S. 



Bastin. Review by Charles H. Behre, Jr 256 



Sapper, Karl. Amerika: Eine Uebersicht des Doppelkontinents. II. 



Geographische Kulturkunde. Book Notice 528 



Scablands, The Channeled, of the Columbia Plateau. By J Harlen 



Bretz 617 



Schoewe, Walter H. The Temporary Mississippi River . . . 420 

 Schondorf, Fr. Verwertung Geologischer Karten und Profile. Zweite 



Auflage. Book Notice 166 



Schroeder, Rolf A. A Contribution to the Geology of Essex County, 



Vermont. Review by A. C. McF 167 



Schwinner, Robert. Die Oberfiachengestaltung des ostHchen Suganer 



Gebietes (SO-Triol). Book Notice 528 



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

 Sektion Auerbach-Lengenfeld. By E. Weise and A. Uhlemann. 



Review by Albert Johannsen 83 



Seward, A. C. A Summer in Greenland. Review by T. C. C. . . 253 



. Fossil Plants, Volumes I-IV. Review by A. C. N. . . 87 



Shapes of Pebbles, The. By Chester K. Wentworth. Review by 



C. H. Behre, Jr 161 



Shepard, Francis Parker. Isostasy as a Result of Earth Shrinkage . 208 



. To Question the Theory of Periodic Diastrophism . . 599 



Shepard, F. P., Chamberlin, R. T., and. Some Experiments in Folding 490 

 Significant Ameliorations of Present Arctic Clunates. By T. C. 



Chamberlin 376 



Silurian. By C. K. Swartz, W. F. Prouty, E. O. Ulrich, and R. S. 



Bassler. Review by E. M. Kindle 682 



Silver Enrichment in the San Juan Mountains, Colorado. By Edson S. 



Bastin. Review by Charles H. Behre, Jr 256 



Smith, Warren D. Geologic Reconnaissance of the Pidatan Oil Field, 



Cotabato Province, Mindanao. Book Notice 166 



Soergel, W. Die Ursachen der diluvialen Aufschotterung und Erosion. 



Book Notice 166 



Stadehnann, W. Ammergauer Studien. II. Kare und kariihnliche 



For men in den Ammergau Bergen. Book Notice . . . . 616 

 Stalagmites and Stalactites, The Growth of. By Vernon C. Allison . 106 

 Stefansson, Vilhjalmur. The Friendly Arctic. Review by William 



Herbert Hobbs i54 



