72 UNIVERSITY OF COLORADO STUDIES 



Emmons, Samuel Franklin, Geology of the Aspen Mining District, Colorado, 



U.S. Geol. Surv., Mon., Vol. XXXI, 1898. 

 Emmons, Samuel Franklin, and Irving, John Duer, The Downtown District of 



Leadville, Colorado, U.S. Geol. Surv., Bull. No. 320, 1907. 

 Endlich, F. M., "Report upon the Geology of the San Luis District," Seventh 



Ann. Rept. U.S. Geol. and Geog. Surv. Terr. (Hayden Survey), for 1873, 



pp. 305-51, 1874. [Says glacial phenomena observed in but one locality and 



of small extent (p. 350).] 

 , "Report of F. M. Endlich, S.N.D.," Eighth Ann. Rept. U.S. Geol. and 



Geog. Surv. Terr. (Hayden Survey), for 1874, pp. 181-240, 1876. [See 



especially pp. 192-220, Animas region.] 

 , "Ancient Glaciers in Southern Colorado," Ninth Ann. Rept. U.S. Geol. 



Surv. Terr. (Hayden Survey), for 1875, pp. 216-26, 1877. 

 -, "Report on the Geology of the White River District," Tenth Ann Rept. 



U.S. Geol. Surv. Terr. (Hayden Survey), for 1876, pp. 63-131, 1878. [See 



especially pp. 86-88, 115-16.] 

 Fenneman, N. M., "The Arapahoe Glacier in 1902," Journ. Geol., Vol. X, pp. 839-^ 



851, 1902. 

 Forbes, J. D., Travels through the Alps of Savoy, 1843. 



, Norway and lis Glaciers. 



, Occasional Papers on the Theory of Glaciers. 



Foster, J. W., "The Mountains of Colorado," Amer. Naturalist, Vol. VI, pp. 



65-75, 1872. [Reports no glacial phenomena and rarity of lakes.] 

 Geikie, Archibald, "The Ancient Glaciers of the Rocky Mountains," Amer. 



Naturalist, Vol. XV, pp. 1-7, 1881. [Fails to note any glacial phenomena in 



Colorado.] 

 Geikie, James, The Great Ice Age and Its Relation to the Antiquity of Man. 

 Geinitz, F. E., "Die Eiszeit," Die Wissenschaft: Sammlung naturwissenschaft- 



licher und mathemaiischer Monographien, Heft 16, Braunschweig: Friedrich 



Vieweg und Sohn, 1906. 

 Gilbert, Grove Karl, Lake Bonneville, U.S. Geol. Surv., Mon., Vol. I, 1890. 



[Discusses connection of lake and glaciers.] 

 , "Systematic Asymmetry of Crest Lines in the High Sierra of California," 



Journ. Geol., Vol. XII, pp. 579-88, 1904. [Discusses glacial sculpturing of 



mountains.] 

 , "Glaciers and Glaciation," Harriman Alaska Expedition, Vol. Ill, pp. 



1-23 1, Doubleday, Page & Co., 1904. 

 Hayden, F. V., "Report of F. V. Hayden, U.S. Geologist," Seventh Ann. Rept. 

 U.S. Geol. and Geog. Surv. Terr. (Hayden Survey), for 1873, pp. 17-81, 

 1874. [Reports glaciation in various parts of Colorado, on pp. 44, 45, 48, 

 51, 52, 55-] 



