OF NORTH AMERICA. 79 



UNGLACIATED AREA. 



Marl Deposits. Lakes Bonneville and Lahontan, Nevada and Utah; 



Coconino Co., Arizona. 



Charcoal Zone. New Mexico (Arroyo Pecos). 



Dry Salt Lake. New Mexico (near Eddy). 



Sandy Clay. ,. Texas (Howard Co.). 



Pliocene. Tassajora Lake Bed, Alameda Co., Cal. 



Unclassified. Contra Costa and Alameda Counties, Cal.; South 



Platte River. 



SUMMARY. 



Species and varieties in englaciated area .................... 17 



Species and varieties in unglaciated area ............... ... 7 



Found only in englaciated area .......................... . 10 



Common to both areas .................................... 6 



C. BIBLIOGRAPHY. 



The following works have been consulted in the preparation of Chapter 

 III: (See Bibliography at end of volume.) 



Adams, C. C., 1901; 1902, a; 1902; 1905. Baker, F. C, 1910, d. Binney, 

 1885. Chamberlin, T. C., 1883; 1906. Coleman, A. P., 1901; 1906. Cooke, 

 A. H., 1895. Dall, W. H., 1905, a, 1905, b. Fairchild, H. L., 1899; 1909. Gil- 

 bert, G. K., 1890. Jordan and Kellogg, 1907. Jordan, Hermann, 1883. Leverett, 

 Frank, 1895; 1899; 1902. Maury, C. J., 1908. Merriam, C. H., 1890; 1898; 

 1910. Pascal, L., 1891. Pilsbry, H. A., 1906. Salisbury, R. D., 1902. Scharff, 

 R. F., 1907 ; 1909. Simpson, C. T., 1895 ; 1900. Tight, W. G., 1903. Todd, J. E, 

 1896. Tryon, J. W., 1882. Upham, W., 1895. Verrill, A. E., 1873. Walker 

 B., 1900, b. Warren, G. K., 1875. Wegemann, C. H., 1909. 



