1957. Fourth Edition. Unpaginated. No dust jacket. Green cloth with black and white illustrations throughout. Moderate creasing and minor tanning to pages with heavier foxing and tanning to pastedowns and endpapers. Tape residue to endpapers and pastedowns with pencil inscriptions to front endpaper. Slight dog-eared pages throughout & visible water stains and tanning to text block edges. Binding is loose. Boards have heavy rubbing with a laminate cover stuck to both boards. Visible bumping to corners and heavier crushing to spine ends. Notable rubbing to spine and fraying to cloth at corners and spine ends.