1990 Two volumes. xvi, 996, [44], xvi p., hundreds of figs, 4to, cloth (plastic dust jacket). Previous owner's name on first free end-paper volume 1, and plastic dust jacket missing from volume 2, else good set.Covers Cnidaria (pp. 101-180), Annelida (pp. 201-306), Crustacea (pp. 322-552), Mollusca (pp. 628-793), Pisces (pp. 905-951), etc.