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Darwin Correspondence Project

To the Secretary of the American Philosophical Society1   23 May 1839

Geological Society of London | Somerset House.

23rd May 1839


I am requested by the Geological Society to express their thanks for the Proceedings of the American Philosophical Society vol 1 No. 6 and to assure you that the Society are much honored by this mark of consideration

I have the honor to be | Sir | Your most obedient | and very humble Servant | Charles Darwin | Secretary To | The Secretary of | The American Philos. Soc.


Franklin Bache.


As Secretary of the Geological Society of London, CD formally expresses thanks for the American Philosophical Society’s Proceedings, vol. 1, no. 6.

Letter details

Letter no.
Charles Robert Darwin
Secretary, American Philosophical Society
Sent from
Somerset House
Source of text
American Philosophical Society (Mss.B.D25.16)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 511,” accessed on 24 September 2021,

Also published in The Correspondence of Charles Darwin, vol. 2