77© INDEX TO VOLUME XIX 



PAGE 



Rounding of Sand Grains, Factors Influencing the. By Victor Ziegler 645 

 Rowe, Jesse Perry. Practical Mineralogy Simplified. For Mining 



Students, Miners, and Prospectors. Review by W. H. E. . . 668 



Schaller, W. T. Axinit von Calif ornien. Author's abstract . . 188 



Schmerber, H. La securite dans les mines. Review by R. T. C. . 92 



Securite dans les mines, La. By H. Schmerber. Review by R. T. C. 92 



Seeding of Worlds, The. Editorial by T. C. C 175 



Seismic History of the Southern Andes (Historia Sismica de los Andes 

 Meridionales.) Por el Conde Fernando de Montessus de Ballore. 

 Review by W. H. H. . . . . . . . . 757 



Serpentines du Krebet-Salatim (Oural du Nord), Sur les. By L. 



Duparc and M. Wunder. Review by F. C. Calkins . . . 464 



Shaw, Eugene Wesley. High Terraces and Abandoned Valleys in 



Western Pennsylvania . . . . . . . .140 



. Preliminary Statement concerning a New System of Quater- 

 nary Lakes in the Mississippi Basin . . . . . .481 



Sherzer, W. H, and A. W. Grabau. The Monroe Formation of South- 

 ern Michigan and Adjoining Regions. Review by S. W. . . 664 



Shimer, Hervey Woodburn, and Amadeus W. Grabau. North Ameri- 

 can Index Fossils: Invertebrates. Review by S. W. . . . 470 



Simple Method for Photographing Large Preparations in Polarized Light, 



A. By Carl Benedicks and Olof Tenow. Review by W. T. Schaller 181 



Skeats, Ernest W. The Volcanic Rocks of Victoria. Review by Albert 



Johannsen . . . . . . . . . . 466 



Skiddaw Granite and Its Metamorphism, The. By R. H. Rastall. 



Review by Albert Johannsen . . . . . .187 



Slates of Arkansas, The. By A. H. Purdue, with a Bibliography of the 



Geology of Arkansas by J. C. Branner. Review by E. R. L. . 191 



Smith, G. F. Herbert. A Camera-lucida Attachment for the Gonio- 

 meter. Review by W. T. Schaller . . . . . .188 



Southerly Extension of the Onondaga Sea in the Allegheny Region, The. 



By E. M. Kindle . . 97 



Speculations regarding the Genesis of the Diamond. By Orville A. 



Derby ........... 627 



Spencer, J. W. The Focus of Postglacial Uplift North of the Great 



Lakes ........... 57 



Steidtmann, Edward. The Evolution of Limestone and Dolomite. I. 323 



. The Evolution of Limestone and Dolomite. II. . .• . 392 



Structure and Composition of the Chandakapur Meteoric Stone, On 

 the. By H. L. Bowman and H. E. Clarke. Review by W. T. 

 Schaller ........... 181 



Sur l'issite, une nouvelle roche filonienne dans la dunite. By L. Duparc 



and G. Pamphil. Review by F. C. Calkins .... 464 



