Recent Publications 



-Grover, N. C. SurfaceWaterSupplyof the United States, 1916. Part XII. 

 North Pacific Drainage Basins. A. Pacific Basins in Washington and 

 Upper Columbia River Basin. [U.S. Geological Survey, Water-Supply 

 Paper 442. (Prepared in co-operation with the states of Washington, 

 Montana, and Idaho.) Washington, 1919.] 



-Grover, N. C., et al. Surface Water Supply of the United States, 19 17. 

 Part IV. St. Lawrence River Basin. [U.S. Geological Survey, Water- 

 Supply Paper 454. (Prepared in co-operation with the states of Minne- 

 sota, Wisconsin, New York and Vermont.) Washington, 1919.] 



. Surface Water Supply of the United States, 191 6. Part VI. Mis- 

 souri River Basin. [U.S. Geological Survey, Water-Supply Paper 436. 

 (Prepared in co-operation with the states of Colorado, Montana and 

 Wyoming.) Washington, 1919.] 



. Surface Water Supply of the United States, 191 7. Part VIII. 



Western Gulf of Mexico Basins. U.S. Geological Survey, Water-Supply 

 Paper 458. (Prepared in co-operation with the state of Texas.) Wash- 

 ington, 1919.1 



. Surface Water Supply of the United States, 1916, Part X. The Great 



Basin. [U.S. Geological Survey, Water-Supply Paper 440. (Prepared 

 in co-operation with the states of Utah, Nevada, Cahfornia, Oregon, and 

 Wyoming.) Washington, 1919.] 



Surface Water Supply of the United States, 1916. Part XII. North 



Pacific Drainage Basins. B. Snake River Basin. [U.S. Geological 

 Survey, Water-Supply Paper 443. (Prepared in co-operation with the 

 states of Oregon, Nevada, and Washington.) Washington, 1919.] 



-Grover, N. C, and Hoyt, W. G. Surface Water Supply of the United 

 States, 191 7. Part V. Hudson Bay and Upper Mississippi River 

 Basins. [U.S. Geological Survey, Water-Supply Paper 455. (Prepared 

 in co-operation with the states of Minnesota, Wisconsin, Iowa, and 

 Illinois.) Washington, 1919.] 



-Harker, Alfred. Petrology for Students. An Introduction to the Study 

 of Rocks under the Microscope. 5th ed., revised. [Cambridge: Uni- 

 versity Press, 1919.] 



-Harnsberger, T. K. The Geology and Coal Resources of the Coal-bearing 

 Portion of Tazewell County, Virginia. [Virginia Geological Survey, 

 Bulletin No. 19. (Prepared in co-operation with the U.S. Geological 

 Survey.) Charlottesville, 1919.] 



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