302 - CLAY GENUS. * FIRST SUBSPECIES. > Loam. Leim.—Werner. External Characters. Its colour is yellowilh grey, and is frequently fpot- ted yellow and brown. Occurs maflive, and in great mafles. It is dull, and fometimes weakly glimmering, but this only when fmall fcales cf mica are prefent. Fra&ure is in the great uneven, in the fmall fine earthy. Fragments are indeterminately angular, very blunt edged. Colours a little. Intermediate between loofe and cohering, but more inclining to the firft. Adheres pretty ftrongly to the tongue. Feels flightly greafy. Not particularly heavy, approaching to light. Qbfervaticn.