A PRELIMINARY REPORT ON CLAYS OF FLORIDA 217

at the same time indicates the origin of the deposits in order to differentiate them from the typical or residual kaolins. The white-burning clays of the coastal plain of Georgia and South Carolina are likewise sedimentary kaolins.
 DISTRIBUTION
 The sedimentary kaolin is now being mined at two different localities. One of these is at Edgar, in Putnam County, and the other is near Okahumpka, in Lake County. Twocompanies are actively engaged in mining the clay near Okahumpka and one at Edgar.
 The deposits of sedimentary kaolin are confined to the peninsular portion of the State and Sellards' states that the distribution of this material is co-extensive, or nearly so, with the Lake Region. Deposits have, however, been found well to the west of the Lake Region in Pasco, Hernando, Levy, and perhaps Citrus and Sumter counties, each of which, except Sumter, borders on the Gulf coast. Others have been reported in the vicinity of Live Oak in Suwannee County and also in Lafayette County, but nothing authentic is known about these occurrences at the present time. Sellards2 further points out that the same type of topography occurs and is probably underlain by the same formations between the Suwannee and Choctawhatchee rivers. The occurrence of the sedimentary kaolin in the State may or may not be dependent upon its association with the Alum Bluff formation (Miocene).
 While many of the plastic kaolin occurrences are in an Alum Bluff area, there is no evidence to indicate any genetic relation between the two; in fact, many of the occurrences are entirely outside the present Alum Bluff areas and are apparently in no way associated with that formation. On this basis, then, the probabilities of finding deposits of sedimentary kaolin between the Suwannee and Choctawhatchee rivers are poor. On the other hand, however, if the distribution of this clay is related to the present topography of the Lake Region, then, as Sellards intimates, there is some likelihood of finding deposits in north and west Florida.
 In this connection it is interesting to note the occurrence in Sec. 26, T. 2 N., R. 19 W., five miles south of DeFuniak Springs in Walton County, of a sandy clay very closely resembling the crude

 lSellards, E. H., The Clays of Florida, Journal American Ceramic Society, Vol. I, p. 313, 1918.
 2Loc. cit.