1961. No edition remarks. 146 pages. Black and white photographic dust jacket over colour illustrative boards with black lettering to spine. Black and white illustrative plates throughout and 2 maps at ends. Introduction by Julian Huxley. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking and light tanning. Overall a good condition item. Boards have mild edge wear with light rubbing and crushing. Some light marking and sunning. Unclipped jacket has moderate edge wear with chips, tears and creasing. Small loss to top edge nearest spine. Tanning to spine.