Biodiversity Heritage Library
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Charles Darwin's Library
associated with "strata/epochs - chalk"
Lake Superior: its character, vegetation, and animals, compared with those of other similar regions.
By: Agassiz, Louis,
Publication info: Boston :Gould, Kendall & Lincoln,1850.
End Slip 2, side 2
A manual of elementary geology.
By: Lyell, Charles.
Publication info: [s.n.] :[s.n.],1855.