1948. 4th edition. 119 pages. Pictorial dust jacket over blue cloth. Contains black and white illustrations with maps. Moderate tanning, with light foxing and marking to pages. Some rub-marking and tanning to pastedowns and endpapers with inscriptions to front. Boards have moderate shelf wear, with rubbing and marking. Light bumping to corners and crushing to spine ends. Book has noticeable forward lean. Boards are slightly bowed. Unclipped jacket has light edge-wear with minor tears and chipping. Moderate tanning and creasing, with rubbing and marking.