4 Pages in Charles Darwin's Library associated with "physical conditions - supernumerary digitism"

Intermarriage
By: Walker, Alexander,
Publication info: London, Churchill, 1838
Pages: Page 139 Page 140
Introduction á la zoologie générale
By: Milne-Edwards, H. (Henri),
Publication info: Paris, Victor Masson, 1851
Pages: Page 140
Researches into the physical history of mankind
By: Prichard, James Cowles.
Publication info: London, Sherwood, Gilbert & Piper, 1836
Volume: v.1
Pages: Page 244