549 pages, plus 24 color plates tipped onto a heavy gray leaf with titled tissue guards; 12 full page, un-numbered duotone illustration leaves; and numerous smaller illustrations in the text. Half bound with green Moroccan leather over spine and corners, and marbled paper over boards and end leaves. Raised spine bands with gilt stamped lettering. Gilded upper edge of text block. Spine is lightly faded and covers show general very light rubbing/wear along edges. There is a small smudge in the margin of page 52 and the adjacent illustration page. Volume remains tight, and is otherwise very clean and intact.