786 INDEX TO VOLUME XVIII 



PAGE 



Prior, G. T. On an Analcite Basalt from Rathjordan, Co. Limerick. 



Review by Clarence W. Russell . . . . .481 



Prosser, Charles S. The Anthracolithic or Upper Paleozoic Rocks of 



Kansas and Related Regions . . .125 



Puerco and Torrejon Formations of the Nacimiento Group, The. By 



James H. Gardner ......... 702 



Purdue, A. H. The Collecting Area of the Waters of the Hot Springs, 



Hot Springs, Ark. . . . . . . . . . 279 



Radioactivity and Geology. An Account of the Influence of Radioactive 



Energy on Terrestrial History. By J. Joly. Review by R. T. C. . 568 

 Ransome, F. L. Notes on Some Mining Districts in Humboldt County, 



Nevada. Review by Charles J. Hares . . . . " 579 



Ransome, F. L., W. H. Emmons, and G. H. Garrey. Geology and 



Ore Deposits of the Bullfrog District, Nevada. Review by 



Albert D. Brokaw 482 



. The Geology and Ore Deposits of Goldfield, Nevada. Review 



by E. R. L 676 



Raritan Formation, The Evidence of the Flora Regarding the Age of 



the. By Edward W. Berry . ■ . . . . . 252 



Recent Publications ........ 484, 678 



Recherche des parametres qui caracterisent les types classiques de 



roches erup fives. By J. Golfier. Review by F. C. Calkins . 477 



Recherches geologiques et petrographiques sur I'Oural du Nord. By 



Louis Duparc. Review by F. C. Calkins ..... 477 

 Reed, William Gardner, Jr., and Douglas Wilson Johnson. The Form 



of Nantasket Beach ........ 162 



Reid, Harry Fielding. Seismological Notes. Review by W. H. H. . 195 

 Reviews ...... 99, 194, 286, 387, 470, 565, 676 



Rich, John Lyon. The Physiography of the Bishop Conglomerate, 



Southwestern Wyoming ........ 601 



Ries, Heinrich, and Henry Leighton. History of the Clay Working 



Industry in the United States. Review by R. T. C. . . . 392 



Robinson, H. H. A New Erosion Cycle in the Grand Canyon District, 



Arizona ........... 742 



Rock Glaciers in Alaska. By Stephen R. Capps, Jr. ... 359, 



"Rock Glaciers" or Chrystocrenes. By J. B. TyrreU . . . 549 



Rogers, A. W., and A. L. DuToit. An Introduction to the Geology of 



Cape Colony. Review by R. T. C. . . . . . 391 



Rowley, R. R. The Geology of Pike County, Missouri. Review by 



E. R. L 200 



Salisbury, RoUin D., and Thomas C. Chamberlin. College Geology. 



Review by R. T. C. . . . . . 103 



