244 FLORIDA GEOLOGICAL SURVEY-I5TH ANNUAL REPORT

pottery mixtures, or blends, are, after firing, painted and decorated by hand. Clay products of this type find a ready local market among the tourists in the winter resorts of the State.
 The Orlando Pottery is located two miles northwest of Orlando on the Apopka Road. This company, which has been organized only about two years, is equipped to carry on an extensive trade in ornamental pottery, curios, etc. The operation up to this time may be regarded as largely experimental in determining the best biscuit and glaze formula as well as the most satisfactory treatment to be accorded the materials and' the most expeditious methods of handling the wares. The materials are washed, mixed and tempered by hand and molding is done by throwing and by casting. Burning is done in one large circular up-draft kiln and two small down-draft kilns. From fifteen to twenty persons, including the decorators, are employed. Some of the ware is placed on the market in an unglazed condition and the remainder is glazed and then decorated by hand. Most of the output is sold in Orlando, but shipments are also made to south and east Florida.
 Feldspar and flint are shipped in from northern markets, and, in the past, clays from other states have been used. Some local clays, however, have since been found which give satisfactory results in certain blends and these have displaced the northern clays to some extent. The Florida sedimentary kaolin has been successfully tried in some of the mixtures. Saggers are purchased from northern firms and wadclay is also procured in the North. Seger cones are used to indicate the progress of firing, which is ordinarily completed at cone 06.
 The Florida Pottery, located at 2430 Euclid Avenue, St. Petersburg, produces the "Kohler Ware", marketed in numerous places in south Florida. This consists of vases, jars, etc., in attractive designs and decorations prepared primarily for tourist trade. As many as four or five clays are at times used in such a way as to give the ware a streaked appearance. These clays are of different colors and are not intimately mixed as a blend but are used as small stringers so that a series of colors show in the finished products. A glaze is applied to the interior of the ware. The clays are washed and tempered by hand. Molding is done entirely by throwing on a potter's wheel.
 The H. A. Graack & Son Art Pottery, located in Bradentown, uses chiefly a clay dredged from the Manatee River, which is first allowed to weather for a time, then washed and prepared by hand. Mold-