the official name of the earth of which we now make tobacco-pipes. Its distinguishing characters are, that it is a dense, compact, heavy earth, of a dull white colour, and very close texture; it will not easily break between the fingers, and slightly stains the skin in handling. It adheres firmly to the tongue; melts very slowly in the mouth, and is not readily diffusible in water. It is found in many places. That of the Isle of Wight is much esteemed for its colour. Great plenty of it is found near Pole in Dorsetshire, and near Wedensbury in Staffordshire.