480 RECENT PUBLICATIONS 
—PurpvuE, A. H. The Zinc Deposits of Northeastern Tennessee. [State 
Geological Survey Bulletin 14. Nashville, 1912.] 
—Rasot, C., ET Muret, E. Les variations périodiques des glaciers. XVII™* 
Rapport, ro11. [Extrait des Annales de glaciologie, t. VII, septembre 
1912, pp. 37-47. Berlin: Borntraeger Fréres, 1912.] 
—ReEeEps, C. A. The Hunton Formation of Oklahoma. [From the American 
Journal of Science, Vol. XXXII, October, 1911.] 
—Resources of Tennessee, The. Vol. I, No. 1, July, 1911. No. 4, October, 
tgt1. [Tennessee Geological Survey. Nashville.] 
—Resources of Tennessee, The. Vol. I, No. 5, November, to11. Vol. I, No. 
6, December, 1911. [Tennessee Geological Survey. Nashville.] 
—RIcE, GrEorGE S. Coal-Dust Explosions. [Bureau of Mines Miners’ 
Circular 3. Washington, 1o11.] 
———. Mine Fires; A Preliminary. [Bureau of Mines Technical Paper 24. 
Washington, 1912.| 
—Rres,H. The Clay and Shale Deposits of the Western Provinces of Canada. 
[Journal of the Canadian Mining Institute, part of Vol. XIV, 1912.] 
A Review of the Theories of the Origin of White Residual Kaolins. 
[Transactions of the American Ceramic Society, Vol. XIII, 1911.] 
—Riccs, E. S. New or Little Known Titanotheres from the Lower Uintah 
Formations. [Field Museum of Natural History Publication 159. 
Geological Series, Vol. IV, No. 2. Chicago, June, 1912.] 
—Rocers, A.W. Geological Map of the Province of the Cape of Good Hop 
Sheet XIX. [Geological Commission. Cape Town, 1912.] 
—Romer, E. Bericht iiber geographische Arbeiten im Gebiete des Sichoto- 
Alin-Gebirges. [Extrait der Bulletin de l’Academie des sciences de 
Cracovie. Classe des Sciences mathématiques et naturelles. Série 4: 
Sciences mathématiques. Février 1912. Cracovie: Imprimerie de 
Université, 1912.] 
—SCHALLER, W. T. Crystallized Variscite from Utah. [No. 1867. Pro- 
ceedings of the U.S. National Museum, Vol. XLI, pp. 413-30, with Plate 
33. Washington, January 31, 1912.] 
Meteorological Notes, Series 2. [U.S. Geological Survey Bulletin 
509. Washington, 1912.] 
—Schimmel and Company, Semi-Annual Report of. [Miltitz (near Leipzig), 
London, New York. April, 1912.] 
—SCHUCHERT, C. Paleogeographic and Geologic Significance of Recent 
Brachiopoda. Proceedings of the Paleontological Society. [Reprinted 
from the Bulletin of the Geological Society of America, Vol. XXII, pp. 
258-75. Published June 23, 1o11.] 
—ScHwarz, E.H.L. Selective Absorption of Substances in the Earth’s Crust. 
[South African Journal of Science. Cape Town, January, 1912.] 
—SEARLE, A. B. The Natural History of Clay. [Cambridge: The Univer- 
sity Press; New York: Putnam, 1912.] 
