1964. First Edition. 352 pages. No dust jacket. This is an ex-Library book. Black cloth boards with gilt lettering. Contains black and white diagrams. Expected library inserts, stamps and inscriptions. Slight crinkling to paper at gutter. Clean pages and diagrams with light tanning and foxing to text block edges. Binding is firm throughout with minor thumb-marking. Heavier tanning to free endpapers and pastedowns. Front free endpaper is missing. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Slight crushing to spine ends. Gilt lettering is bright and clear. Visible wear marks to boards.