A PRELIMINARY REPORT ON CLAYS OF FLORIDA 249

manufacturing, be used for products of superior quality. It is true that the best Florida clays are in the western part of the State and the greatest need for them is in the peninsula, but excellent products can be made from many of the peninsula clays.

 REASONS FOR FAILURE OF MANY FLORIDA VENTURES
 More than fifty abandoned brick plants or former locations of plants may be found in various parts of the State. This at once raises the question as to why so many brick-producing enterprises have presumably resulted in failure. Various reasons may be assigned for this and no one reason would apply in every case. Poor management has, no doubt, caused many of these ventures to fail, and in others a clay unsuited for brick manufacture was used. In some cases, small plants were erected to supply a small local need, and this having been satisfied, the work was discontinued. In one or two cases the limited supply of clay was exhausted, and in one other case an encroaching sand-dune buried the deposit too deep to make continued manufacture profitable. In a few cases the plants were located at too great a distance from transportation to be satisfactory.

 POSSIBILITIES AND RESERVES
 Probable Continued Expansion and General Development-The
extensive expansion and development so noticeable in Florida during the past ten or fifteen years will undoubtedly continue for several generations. The large areas of undeveloped agricultural lands, the long growing seasons, and the mild, even climate, will continue to draw home-builders and will cause a permanent and steady increase in general commercial enterprises.
 The demand for clay products, and particularly structural materials, will also continue to expand with general growth and development within the State. Common brick, face brick, hollow block, fireproofing, roofing tile, and floor tile, will be more widely used than now on account of the decreasing supply and increasing cost of lumber.
 Herein, therefore, lies the greatest possibility in the development of the clay industries of this State. All of the products above enumerated can be produced from Florida clays, and, if not produced in the State, will be imported from adjoining states. Very careful treatment