Edinburgh University Press, 1975.  First Edition.

Association Copy, inscribed by Waddington to E. O. Wilson.  

Waddington was a British developmental biologist who laid the foundations for systems biology, epigenetic, and evolutionary developmental biology.  Wilson was a fellow biologist and a two-time Pulitzer Prize Winner for General Nonfiction.

A fine, square copy in a very good, unevenly toned toned dust wrapper with edge wear.

Very scarce.  As of this writing, there is only one other commercially available signed Waddington, and the association with Wilson makes this uncommon indeed.