8vo, tan buckram cloth, white titles, 232pp. First Edition. Price-clipped dust jacket chipped and creased at upper edge, Brentano’s price sticker to rear panel, mild rubbing to panels, toning to flaps. Contents clean, binding firm. A popular academic work by the science fiction writer on the biochemistry of the human bloodstream.  “Asimov details step by step the manifold activities of the blood..It all comes back to blood—the living river—which ancients identified with life itself; an identification that is still in many ways quite sound.” Scarce in dust jacket. A nearly fine copy in mylar.