1949. Twenty-First Edition. 388 pages. No dust jacket. Black cloth. Contains black and white photographic plates. Clean pages with mild tanning and foxing throughout. Faint thumb-marking throughout. Previous owner's inscription to reverse of frontispiece. Notable cracking to rear hinge. Boards have light edgewear with corner crushing and mild marking to boards. Mild tanning to board edges and spine, which has mild crushing to ends. Moderate water stains to boards. Mild warping to front board. Notable rubbing to spine.