1960. Reprint. 254 pages. No dust jacket. Blue illustrated cloth. Part I. Includes photographic plates. Includes various diagrams. Pages have slight foxing, tanning and minor thumbing. Pencil inscriptions to front endpaper. A few dog-eared corners. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Slight liquid staining to rear. Spine is heavily sunned. Boards a little rubbed and marked overall.