RECENT PUBLICATIONS 223 



-Pierce, C. H. Surface Waters of Vermont. [U.S. Geological Survey, 



Water-Supply Paper 424. Washington, 1918.] 

 -PoGUE, J. E. The Mineral Industries of the United States. Sulphur: 



an Example of Industrial Independence. [U.S. National Museum, Bul- 

 letin 102, Part 3. Washington, 1917.] 

 -Purdue, A. H., and Miser, H. D. Eureka Springs-Harrison (Ark. -Mo.). 



[U.S. Geological Survey, Geologic Folio 202. Washington, 1917.] 

 -Reeside, J. B., Jr. The Helderberg Limestone of Central Pennsylvania. 



[U.S. Geological Survey, Professional Paper 108-K. Washington, 1918.] 

 -RiTTMAN, W. F., AND Dean, E. W. The Analytical Distillation of 



Petroleum. [U.S. Department of the Interior, Bureau of Mines, Bulletin 



125. Washington, 1916.] 



-RiTTMAN, W. F., Jacobs, W. A., and Dean, E. W. Properties of Gasolines 

 Sold throughout the United States in the Calendar Year 1915. [U.S. 

 Department of the Interior, Bureau of Mines, Technical Paper 163. 

 Washington, 1916.] 



-Rogers, G. S. Baked Shale and Slag Formed by the Burning of Coal Beds. 

 [U.S. Geological Survey, Professional Paper 108-A. Washington, 191 7.] 



-Rose, Bruce. Wood Mountain-Willowbunch Coal Area, Saskatchewan. 

 [Canada Department of Mines, Geological Survey, Memoir 89. Ottawa, 

 1917.] 



-Salisbury, R. D., and Knapp, G. N. The Quaternary Formations of 

 Southern New Jersey. (Vol. VII of the Final Report Series of the State 

 Geologist.) Reports of the Department of Conservation and Develop- 

 ment, Division of Geology and Waters. [Trenton, N.J., 191 7.] 



-Sardeson, F. W. Minneapolis-St. Paul, Minnesota. [U.S. Geological 

 Survey, Geologic Folio 201. Washington, 191 7.] 



-Schaller, W. T. Mica in 1916. [U.S. Geological Survey, Mineral 

 Resources of the United States, 1916, Part II: 21. Washington, 1918.] 

 Zirconium and Rare-Earth Minerals in 191 6. [U.S. Geological 



Survey, Mineral Resources of the United States, 1916. Part II: 25. 



Washington, 1918.] 

 -Seismological Society of America, Bulletin of the. Vol. VII, Nos. 2,3. 

 -Smith, P. S. Sulphur, Pyrite, and Sulphuric Acid in 1916. [U.S. Geological 



Survey, Mineral Resources of the United States, 1916, Part II: 28. 



Washington, 1918.] 

 -Smith, S. S. The Mining Industry in the Territory of Alaska during the 



Calendar Year 191 5. [U.S. Department of the Interior, Bureau of Mines, 



Bulletin 142. Washington, 1917.] 

 . The Mining Industry in the Territory of Alaska during the Calendar 



Year 1916. [U.S. Department of the Interior, Bureau of Mines, Bulletin 



153. Washington, 1917.] 



