Bennington patented flint ware.

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Messrs. O. A. Gager and Company, Bennington, in the State of Vermont, manufacture a ware known as "Fenton's patent flint enamelled ware." This is produced from a very white clay found near Charleston, South Carolina, and the beds of which this firm has secured the right of working for twenty-one years. It takes a beautiful glaze, and presents a remarkably clear and transparent appearance. It is chiefly used in the manufacture of the mottled-brown ware, but presents a white fracture, as the mottled surface is simply in the glaze. Of this kind of ware, even at the present rate of production, $1,500 worth per week is manufactured, for which a ready market is found. This ware is got up in imitation of a much commoner article usually manufactured of yellow clay. The present trade, however, appears to be merely a beginning, and a large development, both in the kind and quality of production, may be easily foreseen; as the facilities are great, and an enormous demand awaits a corresponding supply.

The useful article of bleaching-rings is manufactured of this porcelain clay, and finished with the brown glaze. These are largely used by bleachers, dyers, and calico printers, for running pieces of cloth through from one part of the dye or bleach-house to another in the various processes. They are preferable to the glass rings usually employed, as they are less expensive, and are not so liable to break under the expansion and contraction of the iron stays in which they are fixed for use. The demand for this article alone is greater than the manufactory can at present supply.

A parian ware, of good colour and surface, is also manufactured by this Parian ware, firm, from materials obtained near the manufactory, in the State of Vermont. It is composed of the flint, quartz, feldspar, and clay obtained from (he Green Mountain district and the adjacent rivers. This ware is unglazed, and will not stand the test of hot water. It presents, however, a valuable and useful material for a large class of ceramic productions not as yet manufactured in the United States, especially the more ornamental articles for which parian is so largely used in England.

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