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

Lake Superior: its character, vegetation, and animals, compared with those of other similar regions.
By: Agassiz, Louis,
Publication info: Boston :Gould, Kendall & Lincoln,1850.
Pages: Page 34
A manual of elementary geology.
By: Lyell, Charles.
Publication info: [s.n.] :[s.n.],1855.
Pages: Page 236 Page 237 Page 255 Page 256 Page 257 Page 301 Page 408 Page 463
Principles of geology.
By: Lyell, Charles.
Publication info: London :John Murray,1837.
Volume: v.4
Pages: Page 161
Supplement to the fifth edition of A manual of elementary geology.
By: Lyell, Charles.
Publication info: London :John Murray,1857.
Pages: Page 12