1958. Fourth Impression. 373 pages. Pictorial dust jacket over blue cloth. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Dedication to front free endpaper. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned, particularly spine ends. Indentations to board corners. Unclipped jacket has heavy edge wear with large tears, chipping and creasing. Some tanning and foxing to all surfaces, particularly to spine.