1954. Second Edition. 324 pages. Blue and white dust jacket over blue cloth boards with gilt lettering to spine. Black and white diagrams throughout. Binding remains firm. Crinkling to pages at gutters. Pages are moderately tanned throughout. Previous owner's inscription to front endpaper & pastedown but have been crossed out. Boards have mild edge wear with slight rubbing to surfaces. There is bumping to corners and crushing to spine ends. Tanning to spine and edges. Gilt lettering is darkened. Book has a slight forward lean. Unclipped jacket has moderate edge wear with chips, tears and creasing. Tanning to spine and edges. Crossed out inscription to front.