1947. 4th Edition, Revised. 114 pages. Light brown dust jacket over yellow cloth. Binding remains firm. Pages have light tanning and foxing throughout. Pencil inscription and sticker to front pastedown and endpaper. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Unclipped jacket has light edgewear with tears and creasing. Light tanning to spine and front panel. Wear marks and foxing overall.