1968. Further Revised Edition. 95 pages. Pictorial dust jacket over blue cloth with gilt lettering. Contains colour illustrations throughout. Pages are bright, with light tanning and foxing to text block edges. Liquid drop on front free endpaper, with a few small nicks along text block edge. Occasional thumb-marking present throughout. Boards have light shelf-wear with minor corner bumping and slight crushing to spine ends. Boards are subtly bowed. Unclipped dust jacket has light wear to surfaces with slight creasing along edges. Light tanning to spine and edges.