1960. Ninth Edition . 478 pages. No dust jacket. Black cloth with gilt lettering. Black and white illustrations throughout. Light tanning to pages with moderate foxing to text block edges, pastedowns and free endpapers. Pen inscription to front pastedown. Binding remains firm. Boards have minor corner bumping and edgewear with mild scuffing overall. Spine has soft crushing to ends. Lettering remains bright and clear. Book has a slight forward lean.