1931. New Edition. Unpaginated. No dust jacket. Orange cloth. Pages are mildly tanned with minor foxing. Mild cracking to gutters, however binding remains firm. Notable thumb-marking present. Previous owner's inscription to front endpaper. The answers to algebra section has been taped together. Boards have light edgewear with corner crushing and mild marking and mottling to boards. Mild sunning to spine, which has mild crushing to ends. Books has a backward lean. Mild cocking to spine.