3 Pages in Charles Darwin's Library associated with "fauna - Echidna"

Elements of physiology
By: Müller, Johannes, - Baly, William,
Publication info: London, Taylor & Walton, 1838-1842
Volume: v.2
Pages: Page 1236
Introduction á la zoologie générale
By: Milne-Edwards, H. (Henri),
Publication info: Paris, Victor Masson, 1851
Pages: Page 126 Page 127