1936. Seventh Edition Revised. 446 pages. No dust jacket. Green cloth with gilt lettering.Black and white illustrated plates. Minor foxing and tanning to pages and plates. More prominent to text block edges, pastedowns and free endpapers. Moderate cracking to gutters and hinges, exposing netting and causing some looseness to binding but pages remain attached. Annotations and marginalia in pencil; text unaffected. Boards have minor corner bumping and edgewear with mild tanning and scuffing overall. Spine has similar tanning with noticeable splitting and crushing to ends. Lettering remains bright and clear. Book has a slight forward lean.