11 Pages in Charles Darwin's Library associated with "strata/epochs - purbeck"

A manual of elementary geology
By: Lyell, Charles, Sir,
Publication info: [s.n.], [s.n.], 1855
Pages: Page 301 Page 461
Principles of geology
By: Lyell, Charles, Sir,
Publication info: London, John Murray, 1837
Volume: v.4
Pages: Page 284
Supplement to the fifth edition of A manual of elementary geology
By: Lyell, Charles, Sir,
Publication info: London, John Murray, 1857
Pages: Page 24 Page 25
über den Einfluss der Isolirung auf die Artbildung
By: Weismann, August,
Publication info: Leipzig, W. Engelmann, 1872
Pages: Page 8 Page 12 Page 12 Page 41 Page 41 End Slip , side 1