CLAYS, SHALES, AND SLATES. 



361 



GEORGIA. 



INDIANA. 



IOWA. 



KANSAS. 



KENTUCKY. 



LOUISIANA. 



MARYLAND. 

 MASSACHUSETTS. 



MICHIGAN. 



MINNESOTA. 



MISSISSIPPI. 



MISSOURI. 

 NEBRASKA. 



NEW JERSEY. 



Ladd, G. E. Preliminary report on a part of the clays 

 of Georgia. Bulletin 6A, Georgia Geological Sur- 

 vey, 204 pp. 1898. 



Vaughan, T. W. Fullers' earth deposits of Florida and 

 Georgia. Bulletin 213, U. S. Geological Survey, pp. 

 392-399. 1903. 



Blatchley, W. S. A preliminary report on the clays and 

 clay industries of the coal-bearing counties of Indiana. 

 20th Ann. Rep. Indiana Dept. Geology and Natural 

 Resources, pp. 24-187. 1896. 



Blatchley, W. S. Clays and clay industries of north- 

 western Indiana. 22d Ann. Rep. Indiana Dept. 

 Geology and Natural Resources, pp. 105-153. 1898. 



Beyer, S. W., and others. Clays and clay industries of 

 Iowa. Vol. 14, Reports Iowa Geol. Survey, pp. 27- 

 643. 1904. 



Prosser, C. S. Clay deposits of Kansas. Mineral Re- 

 sources U. S. for 1892, pp. 731-733. 1894. 



Crump, H. M. The clays and building stones of Kentucky. 

 Eng. and Min. Jour., vol. 66, pp. 190-191. 1898. 



Clendennin, W. W. Clays of Louisiana. Eng. and Min. 

 Jour., vol. 66, pp. 456-457. 1898. 



Ries, H. Report on Louisiana clay samples. Report 

 Louisiana Geological Survey for 1899, pp. 263-275. 

 1900. 



Ries, H. Report on the clays of Maryland. Vol. 4, pt. 3. 

 Reports Maryland Geological Survey, pp. 203-507, 

 1902. 



Whittle C. L. The clays and clay industries of Massa- 

 chusetts. Eng. and Min. Jour., vol. 66, pp. 245-246, 

 1898. 



Ries, H. Clays and shales of Michigan. Vol. 8, pt. 1. 

 Reports Michigan Geological Survey, 67 pp. 1900. 



Berkey, C. P. Origin and distribution of Minnesota clays. 

 Amer. Geologist, vol. 29, pp. 171-177. 1902. 



Eckel, E. C. Stoneware and brick clays of western Ten- 

 nessee and northwestern Mississippi. Bulletin 213, 

 U. S. Geological Survey, pp. 382-391. 1903. 



Wheeler, H. A. Clay deposits of Missouri. Vol. 2, 

 Reports Missouri Geological Survey, 622 pp. 1896. 



Gould, C. N., and Fisher, C. A. The Dakota and Car- 

 boniferous clays of Nebraska. Ann. Rep. for 1900, 

 Nebraska Board of Agriculture, pp. 185-194. 1901. 



Cook, G. H., and Smock, J. C. Report on the clay deposits 

 of New Jersey. New Jersey Geological Survey, 381 pp. 

 1878. 



