1961. Reprinted with Corrections. 106 pages. Illustrated dust jacket over blue cloth boards and lettering. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Unclipped jacket has light edge-wear with minor tears and chipping. Mild rubbing and marking. Price sticker to flap. Moderate tanning to flaps, panels and spine.