1944. No edition remarks. Unpaginated. No dust jacket. Brown cloth. Two sections paginated separately. Contains black and white illustrations, with folded charts. Pages and plates are lightly tanned and foxed throughout. Occasional thumb-marking present. Brown marking to bibliography page. Cracking to gutters, with exposed binding. Brown scuffed marks to pastedowns and free endpapers. Creasing to front free endpaper. Light scuffing and marking to text-block edges. Binding is slightly shaky. Boards have mild edge wear with bumping to corners and rubbing to surfaces. Crushing to spine ends. Scuffing and light marking overall. Minor water stains to surfaces, with faint dark brown marking. Small dent and split to front board. Book is slightly bowed and forward leaning.