RECENT PUBLICATIONS 753 



-Chapin, Theodore. The Nelchina-Susitna Region, Alaska. [U.S. Geo- 

 logical Survey, Bulletin 668. Washington, 1919.] 



-Clark, F. R. Geology of the Lost Creek Coal Field, Morgan County, 

 Utah. [U.S. Geological Survey, Bulletin 691-L. Washington, 1919.] 

 Structure and Oil and Gas Resources of the Osage Reservation, 



Oklahoma. T. 26 N., Rs. 9, 10, and 11 E. [U.S. Geological Survey, 



Bulletin 686-1. Washington, 1919.] 

 -Clark, Martha B. (compiler). Mineral Resources of the United States 



in 1919 (Preliminary Summary). With Introduction by G. F. Loughlin. 



[U.S. Geological Survey. Washington, 1920.] 

 -Collier, A. J. Coal South of Mancos, Montezuma County, Colorado. 



[U.S. Geological Survey, Bulletin 691-K. Washington, 1919.] 

 . Geology of Northeastern Montana. [U.S. Geological Survey, 



Professional Paper 120-B. Washington, 19 19.] 

 -Cooke, H. C. Geology of the Matachewan District, Northern Ontario. 



[Canada Department of Mines, Geological Survey. No. 97, Geological 



Series, Memoir 115, No. 1783. Ottawa, 1919.] 

 -CuRTiN, T. Casing Troubles and Fishing Methods in Oil Wells. [U.S. 



Bureau of Mines, Bulletin 182. Petroleum Technology 57. Washington, 



1920.] 

 -CusHMAN, J. A. Some Pliocene and Miocene Foraminifera of the Coastal 



Plain of the United States. [U.S. Geological Survey, Bulletin 676. 



Washington, 1919.] 



The American Species of Orthophragmina and Lepidocyclina. 



[U.S. Geological Survey, Professional Paper 125-D. Washington, 1920.] 



-DeWolf, F. W. Illinois Geological Survey, Year Book for 1916. Admin- 

 istrative Report and Economic and Geological Papers. [lUinois Geological 

 Survey, Bulletin 36. Urbana, 1920.] 



-DuNLOP, J. P. Secondary Metals. [U.S. Geological Survey, Mineral 

 Resources of the United States, 1917. Part I: 15. Washington, 1919.] 



-Emerson, F. V. Agricultural Geology. [New York: John Wiley & Sons, 

 1920. (Price I3. 00.)] 



-Gale, H. S. Potash Deposits in Spain. [U.S. Geological Survey, Bulletin 

 715-A. Washington, 1920.] 



. The Potash Deposits of Alsace. [U.S. Geological Survey, Bulletin 



715-B. Washington, 1920.] 



-Gale, H. S., and Hicks, W. B. Potash. [U.S. Geological Survey, Mineral 

 Resources of the United States, 191 7. Washington, 1919.] 



-Gaskill, a. Annual Report of the Department of Conservation and 

 Development of New Jersey, for the Year Ending June 30, 1919. Depart- 

 ment of Conservation and Development of New Jersey. [Trenton, 1919.] 



-Gee, L. C. E. (compiler). Mining Review for the Half-Year Ended Decem- 

 ber 31, 1919. No. 31. South Australia Department of Mines. [Ade- 

 laide, 1920.] 



