RECENT PUBLICATIONS 66 1 



-Hawaiian Volcano Observatory, Monthly Bulletin of the. Vols. VI and 



VII. [Honolulu, 1919.] 

 -Heikes, V. C. Gold, Silver, Copper, Lead, and Zinc in Arizona in 1918. 



[U.S. Geological Survey, Mineral Resources of the United States, 1918. 



Part I, Sec. 15, pp. 329-68. Washington, 1920.] 

 . Gold, Silver, Copper, Lead, and Zinc in Nevada in 1918. Mines 



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

 States, 1918. Part I, Sec. 12, pp. 217-64. Washington, 1920.] 



-Henberson, C. W. Gold, Silver, Copper, Lead, and Zinc in New Mexico 

 and Texas in 191 7. [U.S. Geological Survey, Mineral Resources of the 

 United States, 1917, Part I, Sec. 24. Mines Report. Washington, 1919.] 



. Gold, Silver, Copper, Lead, and Zinc in New Mexico and Texas in 



1918. Mines Report. [U.S. Geological Survey, Mineral Resources of 

 the United States, 1918. Part I, Sec. 14, pp. 303-28. Washington, 1920.] 



. Gold, Silver, Copper, and Lead in South Dakota and Wyoming in 



1918. [U.S. Geological Survey, Mineral Resources of the United States, 



1918, Part I, Sec. 8. Washington, 1919.] 

 -Hewett, D. F. Manganese and Manganiferous Ores in 191 7. [U.S. 



Geological Survey, Mineral Resources of the United States, 1917, Part I, 



Sec. 23. Washington, 1919.] 

 -Hill, J. M. Arsenic, Bismuth, Selenium, and Tellurium in 191 8. [U.S. 



Geological Survey, Mineral Resources of the United States, 191 8, Part I, 



Sec. 9, pp. 193-99. Washington, 1919.] 

 . Gold, Silver, Copper, Lead and Zinc in the Eastern States in 191 8. 



Mines Report. [U.S. Geological Survey, Mineral Resources of the 



United States, 1918, Part I, Sec. 11, pp. 211-15. Washington, 1920.] 

 . Platinum and Allied Metals in 1918. [U.S. Geological Survey, 



Mineral Resources of the United States, 1918, Part I, Sec. 10, pp. 201-9. 



Washington, 1919.] 

 -HiLLEBRAND, W. F. The Analysis of Silicate and Carbonate Rocks. [U.S. 



Geological Survey, Bulletin 700. Washington, 1919.] 

 -Howe, J. L., and Holtz, H. C. Bibliography of the Metals of the Platinum 



Group — Platinum, Palladium, Iridium, Rhodium, Osmium, Ruthenium, 



1 748-191 7. [U.S. Geological Survey, Bulletin 694. Washington, 1919.] 

 -HuENE, Friedrich VON. Beitrage zur Kenntnis der Ichthyosaurier 



im deutschen Muschelkalk. [Separat-x\bdruck aus Palaeontographica, 



Beitrage zur Naturgeschichte der Vorzeit. Herausgegeben von J. F. 



Pompeckj in Tubingen. LXII. Band. [Stuttgart: E. Schweizer- 



bartsche Verlagsbuchhandlung. 1916.] 

 . Beitrage zur Kenntnis einiger Saurischier der schwabischen Trias. 



[Separat-Abdruck aus dem Neuen Jahrbuch fiir Mineralogie, Geologie 



und Palaontologie. Jahrg. 1915. Band i. (S. 1-27 und Taf. I-VII.)] 

 . Coelurosaurier-Reste aus dem unteren Muschelkalk. [Separat- 



Abdruck aus dem Centralblatt f. Min. etc. Jahrg. 1914.] 



