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

Introduction á la zoologie générale.
By: Milne-Edwards, Henri.
Publication info: Paris :Victor Masson,1851.
Pages: Page 14
Principles of geology.
By: Lyell, Charles.
Publication info: London :John Murray,1837.
Volume: v.1
Pages: Page 326 Page 62