Recent Publications 



Hazard, D. L. Results of Observations Made at the United States Coast 

 and Geodetic Survey Magnetic Observatory near Honolulu, Hawaii, 191 5 

 and 1 916. [U.S. Coast and Geodetic Survey, Serial No. 86. Washington, 

 1918.] 



. Terrestrial Magnetism. Results of Magnetic Observations Made 



by the United States Coast and Geodetic Survey in 191 7. [U.S. Coast 

 and Geodetic Survey, Serial No. 88. Special Publication No. 51. Wash- 

 ington, 1918.] 



— Heikes, V. C. Gold, Silver, Copper, Lead and Zinc in Utah in 1917. 

 [U.S. Geological Survey, Mineral Resources of the United States, 1917, 

 Part 1: 12. Washington, 1919.] 



— Henderson, C. W. Gold, Silver, Copper, and Lead in South Dakota 

 and Wyoming in 1917. [U.S. Geological Survey, Mines Report I: 11. 

 Washington, 191 9.] 



— HiGGiNS, Edwin, Lanza, A. J., Laney, F. B., and Rice, George S. Sili- 

 ceous Dust in Relation to Pulmonary Disease among Miners in the Joplin 

 District, Missouri. [U.S. Bureau of Mines, Bulletin 132. Washington, 

 1917.] 



— Hinds, H. The Geology and Coal Resources of Buchanan County, 

 Virginia: With a Chapter on the Forests of Buchanan County, Virginia, 

 by W. G. Schwab. [Virginia Geological Survey, Bulletin XVIII. Pre- 

 pared in Co-operation with the U.S. Geological Survey. Charlottes- 

 ville, 1 91 8.] 



— HoRNE, J., and Gregory, J. W. The Annan Red Sandstone Series of 

 Dumfriesshire. Transactions of the Geological Society of Glasgow, 

 Vol. XV, Part III, pp. 374-386. [Glasgow, 1916.] 



— ^Jack, R. L. The Geology of the Moonta and WaUaroo Mining District. 

 [South Australia Department of Mines, Geological Survey, Bulletin 6. 

 Adelaide, 1917.] 



— Janin, C. Gold Dredging in the United States. [U.S. Bureau of Mines, 

 Bvilletin 127. Washington, 1918.] 



— Jimenez, Carlos P. Estadistica Minera en 19 16. Boletin del Cuerpo 

 de Ingenieros de Minas del Peru. No. 86. Ministerio de Fomento. 

 [Lima, 1918.] 



— Katz, S. H. The Diffusion of Oxygen through Stored Coal. [U.S. Bureau 

 of Mines, Technical Paper 170. Washington, 1917.J 



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