I! INARY R FIRT ON CLAYS OF V1,01.L\ 237 Fic. 52.-Motor used in loading cars. Florida China ClaY Company, Okahumpka, Lake County. AIl Fin. 53.-Loading cars. Florida China Clay Conpany, OkahnUmpka, Lake County. As may he seen from these sections, the materials underlying the sedimentary kaolin are variable. Fuller's earth was encountered in some of the borings. The maximum thickness of clay-bearing sand found in this region was 32 feet. Sedimentary kaolin is exposed on the south side of Lake Harris, on the property of R. F. Kleiser, in Sec. 22, T. 20 S., R. 25 E. A.