1899. 664 pages. No dust jacket. Brown cloth. Black and white diagrams throughout. Translated from German by G.W. Myers. Prize plate stuck to front pastedown. Pages and diagrams are lightly tanned and foxed throughout with thumb marking present. Pencil inscriptions to front endpaper. Slight crinkling to paper at gutters, however binding remains firm. Occasional dog-eared corners. Small brown marks to fore edge of text block. Text is not affected. Thumb-marking present throughout. Boards have moderate shelf-wear with bumping to corners and rubbing to surfaces. Light tanning to spine with moderate crushing to spine ends. Gilt lettering is bright and clear. Mild fraying to spine ends. Faint marks to both boards. Book is slightly bowed and forward leaning.