( 161 ) / l > .;.!>! -Olul.A.' ’ ■ ■ fv - < V- - : : - - • ••• Ir f: TWENTY-THIRD SPECIES. J ' : • p. : n Hornftone. It Hornftein.—Werner. ~ * r t . ' ' Werner divides this fpecies into three fubfpecies. Splintery hornftone. 2. Conchoidal hornftone. 3* Woodftone. ' : ; - V 1 FIRST SUBSPECIES. -- Le Hornftein ecailleux, Brock, t. 1. p. 255. . . .• -'.7 External Char after s. Its mod common colour is grey, frequently alfo r ed, brut feldom of other colours. Of grey it pre sents the following varieties; blueilh, greenilh, yel- Wifh, fmoke and pearl grey; from pearl grey paffes into flefh red, fometimes even into blood red ai) d brownilh red, and from greenilh grey it paffes into mountain and olive green. Y It