1966. Reprinted. 368 pages. Pictorial dust jacket over pictorial cloth covered boards. Black and white photographs and diagrams. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Minor pencil inscription 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. Boards are slightly bowed. Unclipped jacket has heavy edge wear with large tears, chipping and creasing. All surfaces heavily tanned, particularly spine.