478 RECENT PUBLICATIONS 
Potentialities by Dr. W. J. McGee. [Mississippi Geological Survey. 
Jackson, 1910.] 
A Preliminary Study of Soils of Mississippi. [Mississippi Geological 
Survey Bulletin 8. Jackson, 1911.] 
—Lupton, C. T. Coal Fields in Uinta and Wasatch Counties, Utah. -[U.S. 
Geological Survey Bulletin 471-I. Washington, 1912.] tie 
—MarsHALl, R. B. Results of Spirit Leveling in Alabama, torr. [U.S. 
Geological Survey Bulletin 517. Washington, 1912.| 
Results of Spirit Leveling in Illinois, 1909 and 1910. [U.S. Geological 
Survey Bulletin 493. Washington, ro11.| 
Results of Spirit Leveling in Ohio, 1909 and 1910. [U.S. Geological 
Survey Bulletin 476. Washington, t1o1t1.] 
Results of Spirit Leveling in Tennessee, 1910 and tort. [U.S. 
Geological Survey Bulletin 519. Washington, 1912.] 
———. Results of Triangulation and Primary Traverse. For the Years 
tg0g and roto. [U.S. Geological Survey Bulletin 496. Washington, 
1912.| : ial 
—Maryland Geological Survey. Lower Cretaceous. [Baltimore, 1911.] 
Prince George’s County. (With Geological and Topographic Maps.) 
[Baltimore, 1911.] 
—Maryland Geological Survey, Vol IX. [Baltimore, 1911.] 
—MartrtueEs, F. E. Sketch of Yosemite National Park and an Account of the 
Origin of the Yosemite and Hetch Hetchy Valleys. [Department of the 
Interior. Washington, 1912.] : fae 
—McLetsu, J. Preliminary Report on the Mineral Production of Canada, 
during the Calendar Year 1911. [Canada Department of Mines, No. 150. 
Ottawa, 1912.| re 
—Me_rwin, H. E., anp Larsen, E. S. Mixtures of Amorphous Sulphur and 
Selenium as Immersion Media for the Determination of High Refractive 
Indices with the Microscope. [American Journal of Science, Vol. XXXIV, 
July, 1912.] 
—Michigan Geological and Biological Survey, 1838-1912, Catalog and Table 
of Contents of the Publications of the. [Ann Arbor, 1912.] 
—MILLER, W.G. Reports on the District of Patricia, Recently Added to the 
Province of Ontario. [Report of the Bureau of Mines, 1912, Vol. XXI, 
Part II. Toronto, 1912.] 
—MILLeR, WiLt1am J. Contact Action of Gabbro on Granite in Warren 
County, New York. [Reprinted from Science, N.S., Vol. XXXVI, No. 
928, pp. 490-92, October 11, 1912.| 
———. The Garnet Deposits of Warren County, New York. [Reprinted 
from Economic Geology, Vol. VII, No. 5. August, 1912.| 
—Mnineral Resources of the United States. Calendar Year 1909. Part II. 
Nonmetals. [U.S. Geological Survey. Washington, ro1t1.| 
