2 PROCEEDINGS OF THE INDIANAPOLIS MEETING. 



Frank Leverett, B. S., Madison, Wisconsin. Assistant Geologist, U. S. Geological 

 Survey; has been engaged since 1886 in tracing terminal moraines of Michigan, 

 Illinois, Indiana and Ohio ; has published papers on glacial topics in A. A. A. 

 ►S., and in Wisconsin Academy of Science. 



JosuA LiNDAHL, A. M., Ph. D., Springfield, 111. State Geologist of Illinois and 

 Curator of the State Museum ; edited Vol. VIII. of Illinois Geological Survey 

 Keports ; has published papers on Geology in American Naturalist; his other 

 publications have been on Zoology. 



Waldemar Lindgren, Washington, D. C. Assistant Geologist, U. S. Geological 

 Survey; engaged in Mining Geolog}' ; has published in American Institute of 

 Mining Engineers; Tenth Census of U. S.; California Academy of Sciences ; 

 Bulletin of U. S. Geological Surve^^ 



Peter McKellar, Fort William, Canada. Has been engaged in Geological explora- 

 tion, north of Lake Superior, daring 25 yeifrs ; was Assistant on Geological Sur- 

 vey of Canada ; has published several important papers. 



William B. Potter, A. M., E. M., St. Louis, Mo. Professor of Mining and Metal- 

 lurgy in Washington University; President of American Institute of Mining 

 Engineers ; formerly Assistant on Geological Surveys of Ohio and Missouri ; has 

 published many papers. 



William North Rice, A. M., Ph. D., LL. D., Middletown, Conn. Professor of 

 Geology in Wesleyan University; has published numerous papers in American 

 Journal of Science; Science; Bulletin of National Museum, and other journals. 



Ralph S. Tarr, Austin, Texas. Assistant Geologist on Texas Geological Survey ; 

 has been engaged on study of glacial deposits in New England ; has published 

 in American Journal of Science and American Geologist. 



The Secretary announced the appointment of a committee to collect and 

 to prepare a plan for the collection and preservation of geological photo- 

 graphs. This committee, consisting of Messrs. J. F. Kemp, W. M. Davis, 

 and J. S. Diller, has begun work and issued a circular. 



There being no other business before the Society, the printed programme 

 was taken up. The first paper was — 



THE APPOMATTOX FORMATION IN THE MISSISSIPPI EMBAYMENT. 



BY W J MCGEE. 



[Abstract.) 



The Appomattox formation was defined and, as developed in the middle Atlantic 

 slope, was briefly described early in 1888,* and its southern extension in the Carolinas, 

 Georgia, Alabama, and southeastern Mississippi was described at some length during 

 the present year.f As set forth in these publications, the formation is a series of ob- 

 scurely stratified and frequently cross-bedded loams, clays, and sands of prevailing 

 orange hues, with local accumulations of gravel about waterways ; the materials 

 vav3'ing somewhat from place to place, but always in the direction of community of 

 material between the formation and the older deposits upon which it lies ; while as 

 a whole the formation retains so distinctive and strongly individualized character- 



* Am. Jour. Sci., 3 Ser., Vol. XXXV, pp. 328-30. 

 t Am. Jour. Sci., 3 Ser., Vol. XL, 1890, pp. 15-41. 



