1950. Fifth Edition. 609 pages. No dust jacket. Brown cloth with gilt lettering. Black and white photographic plates and illustrations. Light tanning to pages. More prominent to text block edges, pastedowns and free endpapers. Occasional annotations, underlining and marginalia in pencil; text remains unaffected. Binding is slightly loose but pages remain attached. Boards have minor corner bumping and edgewear with mild tanning and scuffing overall. Spine has light tanning with soft crushing to ends. Lettering remains bright and clear. Book has a slight forward lean.