In keeping with all 16-ketosteroids which we have ous methanol plus a drop of acetic acid (involving the liberal examined, androstan-17P-ol-3, 16-dione shows a use of charcoal), there was obtained 108 mg. of leaves o, f strong levo shift in optical rotation Over that of its androstan-17P-ol-3, 16-dione which melted at 190-191.5 with yellow turning (IV). The compound crystallized as analog unsubstituted at c16. Thus, the optical ro-the ...