582 RECENT PUBLICATIONS 
—MarsHatL, R. B. Results of Triangulation and Primary Traverse, 1911 
and 1912. [U.S. Geological Survey, Bulletin 551. Washington, r910.] 
—MeEtnzer, O. E. Bibliography and Index of the Publications of the U. S. 
Geological Survey Relating to Ground Water. [U.S. Geological Survey, 
Water-Supply Paper 427. Washington, ro109.] 
—Munition Resources Commission, Canada. Final Report of the Work of 
the Commission, November, 1915, to March, 1919, inclusive. [Toronto, 
1920.] 
—Norturop, J.D. Natural Gas Gasoline. [U.S. Geological Survey, Mineral 
Resources of the United States, 1917. Washington, 19709.| 
—Ospson, C. C. Peat. [U.S. Geological Survey, Mineral Resources of the 
United States, 1917. Part II: 20. Washington, ror10.] 
—ParDEE, J. T. Geology and Mineral Deposits of the Colville Indian Reser- 
vation, Washington. [U.S. Geological Survey, Bulletin 677. Wash- 
ington, rorg.| 
—Philippine Division of Mines of the Bureau of Science. The Mineral 
Resources of the Philippine Islands for the Years 1917 and 1918. [Manila, 
1920.] 
—Ransome, F. L. Our Mineral Supplies: Quicksilver. [U.S. Geological 
Survey, Bulletin 666-FF. Washington, 1o109.] 
Quicksilver; with a Bibliography by I. P. Evans. [U.S. Geological 
Survey, Mineral Resources of the United States, 1917. Washington, 
rgr9.| 
—Ransome, F. L., BurcHarp, E. F., AnD GALE, H. S. Contributions to 
Economic Geology, 1917. Part I. Metals and Nonmetals except Fuels. 
[U.S. Geological Survey, Bulletin 660. Washington, 1919] 
