, RECENT PUBLICATIONS 143 



-Jaggar, T. a. Live Lava at Kilauea. Reprinted from the Journal of 

 the Washington Academy of Sciences, Vol. VII, No. 9, May 4, 191 7. 



. On the Terms AphroHth and Dermolith. Reprinted from the 



Journal of the Washington Academy of Sciences, Vol. VII, No. 10, May 19, 

 1917. 



. Thermal Gradient of Kilauea Lava Lake. Reprinted from the 



Journal of the Washington Academy of Sciences, Vol. VII, No. 13, July 19, 



1917. 

 -Johnston, W. A. Pleistocene and Recent Deposits in the Vicinity of 



Ottawa, with a Description of the Soils. [Canada Department of Mines, 



Geological Survey, Memoir loi. Ottawa, 1917.] 

 -Katz, F. J. Feldspar in 1916. [U.S. Geological Survey, Mineral Resources 



of the United States, 1916, Part II, pp. 173-84. Washington, 1917.] 



Stratigraphy in Southwestern Maine and Southeastern New Hamp- 



shire. [U.S. Geological Survey, Professional Paper 108-L Washington, 

 1918.] 



-Keith, Arthur, and Sterrett, D. B. Tin Resources of the Kings Moun- 

 tain District, North Carolina and South Carolina. [U.S. Geological 

 Survey, Bulletin 660-D. Washington, 1918.] 



-Keller, Edward. The Principles and Practice of Sampling Metallic 

 Metallurgical Materials, with Special Reference to the Sampling of 

 Copper Bullion. [U.S. Department of the Interior, Bureau of Mines, 

 Bulletin 122. Washington, 191 7.] 



-Knopf, Adolph. The Antimonial Silver-Lead Veins of the Arabia District, 

 Nevada. [U.S. Geological Survey, Bulletin 660-H. Washington, 1918.] 



. Strontianite Deposits near Barstow, California. [U.S. Geological 



Survey, Bulletin 660-I. Washington, 1918.] 

 -Kreisinger, Henry, Ovitz, F. K., and Augustine, C. E. Combustion in 



the Fuel Bed of Hand-Fired Furnaces. [U.S. Department of the Interior, 



Bureau of Mines, Technical Paper 137. Washington, 1917.] 

 -Lambe, Lawrence M. The Cretaceous Theropodous Dinosaur Gorgo- 



saurus. [Canada Department of Mines, Geological Survey, Memoir 100. 



Ottawa, 191 7.] 

 -Lewis, J. O., and McMurray, W. F. The Use of Mud-Laden Fluid in Oil 



and Gas WeUs. [U.S. Department of the Interior, Bureau of Mines, 



Bulletin 134. Washington, 1916.] 



-Lindeman, E., and Bolton, L. L. Iron Ore Occurrences in Canad.a. 



Vol. II. Descriptions of Iron Ore Occurrences. With 2)3 maps. Mines 



Branch. [Canada Department of Mines. Ottawa, 191 7.] 

 -Loughlin, G. F. Zinc Carbonate and Related Copper Carbonate Ores at 



Ophir, Utah. [U.S. Geological Survey, Bulletin 690-A. Washington, 



1917.] 



