STOKOE, W.J. The Observer's Book of British Butterflies . London: Frederick Warne & Co. Ltd., .
12mo., light blue cloth with upper board and backstrip lettered in darker blue; original dust wrapper; pp. 192; spine lightly pushed to head and foot, with end papers a tad toned and some light sunning to spine; jacket has been roughly price clipped with previous price sticker to inside flap and some overall wear, particularly affecting the spine ends.
Newer edition, released to incorporate the newly discovered Clouded Yellow. The third book in the Observer canon. All the known British species are described, and there are 68 full-colour plates.