8 Pages in Charles Darwin's Library associated with "strata/epochs - wealden"

  1. A history of British fossil mammals and birds.
    By: Owen, Richard,
    Publication info: London :John Van Voorst,1846.
    Pages: Page xv  Page 546  
  2. A manual of elementary geology.
    By: Lyell, Charles.
    Publication info: [s.n.] :[s.n.],1855.
    Pages: Page 251  Page 268  Page 350  End Note   
  3. Principles of geology.
    By: Lyell, Charles.
    Publication info: London :John Murray,1837.
    Volume: v.4
    Pages: Page 284  Page 310