Sixth Edition. 192 pages. No dust jacket. Brown cloth with gilt lettering. Black and white illustrations throughout. Pages are mildly tanned with light foxing. Mild cracking to gutters, however binding remains firm. Mild thumb-marking present. Previous owner's inscription to rear pastedown. Boards have light edgewear with corner crushing and notable marking to boards. Heavy tanning to spine, which has mild crushing to ends. Ink droplets to rear board.