134 Clavel. The impost on a square headed window, door, or chimney. c. Clay dues. The holder of a china clay sett pays from 3/- to 3/6 per ton on clay sent or sold out of the works, as dues to the land-owner. Clay maidens. Girls employed in china-clay works, generally as ^^ scrapers." They remove the outside sand, &c., from the dried clay. See Clay pailS. Clay pans. Shallow places from 50 to 80 feet square and about 18 inches deep. The floors being covered with sand, the semi-fluid clay from the ^'clay pit" is poured or pumped into them, so as to filter off and evaporate the water, until the clay is firm enough to be cut out in square blocks, to be further dried in the sun. The process is now generally superseded by the Dry. Q.v. Clay pit. A large water-tight pit, about 8 feet deep and from 40 to 80 feet square. The china clay held suspended in water is allowed to deposit in such a pit, the clear water running away. See Clay pans. Clay sett. A portion of land containing a bed of
- 'clay," (i.e., granite in a decomposed soft form)
marked out for raising, washing, or preparing china or porcelain clay. Clay stopes. The place, or pit where the decomposed granite is dug up and "washed" so as to separate the sand and mica from the pure porcelain or china clay.
