1905. Third Edition, Revised. 295 pages. No dust jacket. Brown cloth with gilt lettering. Contains colour illustrated frontispiece, with black and white diagrams throughout. Pages are mildly tanned and foxed, but text remains clear. Binding is firm. Boards have moderate shelf-wear, with noticeable corner bumping and some scuffing to edges. Noticeable crushing and slight splitting to spine ends. Gilt remains bright. Moderate rubbing and scuffing overall, with a few small noticeable marks also.