To the Geological Society of London 12 March 
Down Bromley | Kent
Will you be so good as to send me a line by return of Post, informing me (if you can find out) how many copies of our Proceedings are annually sold. I am particularly anxious to know this soon—1
Believe me | Yours very faithfully | C. Darwin
Asks how many copies of Proceedings are commonly sold.
Please cite as
Darwin Correspondence Project, “Letter no. 663,” accessed on 17 January 2017, http://www.darwinproject.ac.uk/DCP-LETT-663