1961. No Edition Remarks. 168 pages. Blue and yellow dust jacket over brown cloth boards with white lettering to spine. Preface by F. Lyman Windolph. Binding remains firm. Annotations and marginalia to couple of pages throughout. Pages remain bright and clear with minimal tanning. Couple of stamp marks. Boards have mild edge wear with slight rubbing to surfaces. Crushing to spine ends. Tanning to spine and edges. Lettering is darkened slightly. Unclipped jacket has light edge wear with minor tears and chipping. Mild rubbing and marking. Tanning to spine and edges. Ring mark to front.