1962. Second edition. 613 pages. No dust jacket. Blue cloth covered boards. Black and white photographs and diagrams. Pages remain bright and clean with minimal tanning and foxing. Binding slightly loose. Heavy pen inscriptions to front endpapers. Some marginalia. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned, particularly spine. Some additional mild marks and staining. Boards are slightly bowed. Book has slight forward lean.