First edition. Folio, 5 vols. pp. [xxiv], 726 + 1 folding plate; [x], [4], 727-1013, [7] + 11 folding plates; [x], [4], 1017-1526; [x], [5], 1528-2062; [x], [5], 2064-2475, all with illustrated frontispiece. First two leaves (acknowledgements) of vol. 1 loose, else very good copies. Blue cloth, the odd spot or scratch, spines a bit faded, modern library stamp to front free endpaper, small paper label to spine of vols. 2-5.