To John Washington 14 October 
12 Upper Gower St
I return you the proof sheets, & have no observations to make on the geology, contained therein.— When I come to describe the Cordillera of Chile, this paper will be of considerable use to me.1 Very many thanks for the Bib. des Voyages;2 you have an excellent memory for your friends.—
If you can assist me to the Annales Maritims (1829 Part II, p 283) for Tromelins Voyage, you will have helped me in every point, which I wanted.3 Is it not a proper book for the Soc. to purchase?
With many thanks | Believe me | Yours very truly | Chas Darwin
I hope to pay you a visit in the course of a few days
Returns proof-sheets of an article he has reviewed for the Journal of the Royal Geographical Society. He will find it useful when he comes to describe the Cordilleras of Chile.
Please cite as
Darwin Correspondence Project, “Letter no. 536,” accessed on 23 October 2016, http://www.darwinproject.ac.uk/DCP-LETT-536