1948. Fourth Edition. 96 pages. Grey dust jacket over blue cloth. Pages are moderately tanned and foxed throughout. Previous owner's inscription to front pastedown and free endpaper. Thumb-marking present. Noticeable creasing to gutter. Cracking to gutters, with exposed netting. Boards have mild edge-wear with slight rubbing to surfaces. Some crushing to spine ends. Visible tanning to spine and edges. Brown marks to edges. Textblock is shaky. Unclipped jacket has moderate edgewear with chips, tears and creasing. Loss to spine ends. Noticeable tanning to spine. Some rubbing to surfaces. Scuffing to edges.