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Darwin, C. R. in correspondent 
Thwaites, G. H. K. in correspondent 
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From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
8 Mar 1856
Source of text:
American Philosophical Society (Mss.B.D25.125)
Summary:

Hopes GHKT will publish on variations in plant species at different elevations. Asks about variations among plants on heights of Ceylon.

Promises to publish on the species question.

Asks for pigeons’ skins from India or Ceylon, and for ducks’ skeletons. Mentions help promised by E. F. Kelaart.

Contributor:
Darwin Correspondence Project