[60d] in its composition than the first kind, is the kind to which we have given the name of “earthenware.” But sometimes, when moisture is still left in the earth and it has been fused by fire and has cooled again, it forms the species which is black in hue. On the other hand there are two kinds, which, in exactly the same manner, are isolated after the mixture from much of their water, but are composed of finer parts of earth, and are saline: when these have become semi-solid and soluble again by water, one of them is purgative of oil and earth and forms the species called “lye“1; and the other, which blends well with the combinations which affect the sensation of the mouth,
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