842 INDEX TO VOLUME XXIV 



PAGE 



Ripple-Marks in Ohio Limestones. By Charles S. Prosser . . . 456 



Ripple Marks, Notes on. By J. A. Udden 123 



Road and Concrete Materials of Iowa, The. By S. W. Beyer and 



H. F. Wright. Review by W. B. W 306 



Rolla Quadrangle, The Geology of the. By Wallace Lee. Review by 



W. B. W 825 



Ruedemann, R., and H. P. Cushing. Geology of Saratoga Springs and 



Vicinity. Review by W. B. W 820 



San Juan Basin, New Mexico, Paleocene Deposits of the. By W. J. 



Sinclair and Walter Granger. Review by V. 0. T 305 



Saratoga Springs and Vicinity, Geology of. By H. P. Cushing and 



R. Ruedemann. Review by W. B. W 820 



Saratoga, The Mineral Springs of. By James F. Kemp. Review by 



W. B. W 828 



Sayles, Robert W. The Squantum Tillite. Review by C. B. A. . 99 

 Schuchert, Charles. Climates of Geologic Time. Review by R. C. M. 515 

 Schultz, Alfred Reginald. Geology and Geography of a Portion of 



Lincoln County, Wyoming 301 



Sellards, E. H. Origin of Hard Rock Phosphates of Florida. Review 



byW. B. W 822 



. Water Supply of Eastern and Southern Florida. Review by 



W. B. W . 823 



Shand, S. J. A Recording Micrometer for Geometrical Rock Analysis 394 

 Shaw, Eugene W. The Mud Lumps at the Mouths of the Mississippi. 



Review by R. C. M 623 



Shedd, Solon. Cement Materials and Industry in the State of Wash- 

 ington. Review by W. B. W 305 



Sinclair, W. J., and Walter Granger. Paleocene Deposits of the San 



Juan Basin, New Mexico. Review by V. 0. T 305 



Sinnott, E. W. A Botanical Criterion of the Antiquity of the Angio- 



sperms 777 



Skeleton of Trimerorhachis, The. By S. W. Williston 291 



Smith, C. H., Jr. Genesis of Pyrite Ores of St. Lawrence County. 



Review by W. B. W 821 



Smith, Leon P., and Albert D. Brokaw. Zonal Weathering of a Horn- 

 blende Gabbro 200 



Smith, Warren S. Stratigraphy of the Skykomish Basin, Washington . 559 

 Snider, L. C. Geology of East Central Oklahoma. Review by W. B.W. 827 

 Sosman, Robert B. Types of Prismatic Structure in Igneous Rocks . 215 

 South Orkneys, Glaciology of the: Scottish National Antarctic Expe- 

 dition. By J. H. Harvey Pirie. Review by T. T. Q. . . . 406 

 Squantum Tillite, The. By Robert W. Sayles. Review by C. B. A. . 99 

 Stage Attachment for the Metallographic Microscope, A. By Albert 



D. Brokaw 718 



Standing Rock and Cheyenne River Indian Reservations, North and 

 South Dakota, Geology of the. By W. R. Calvert, A. L. Beekly, 

 V. H. Barnett, and M. A. Pishel. Review by V. 0. T. . . . 302 



