From Charles Henry Binstead 17 April 1868
April 17. 1868
My dear Sir
I have had during the past few days the pleasure of reading your valuable & interesting book on “The Variation of Animals &c under domestication”—1
—As an ornithologist in a very small way I have read with great interest your Chapter on Ducks &c But I do not notice that you have observed a change that I fancy takes place in Mallards when becoming domesticated— it is this that in the wild Duck the claws are black whereas in the tame ones they are white I think I have noticed this in several cases & take the liberty of informing you—as it may have escaped your observation &—should there be anything in it & your book reaches a 2nd Edition—it may be of service to you in rendering the same more complete.2
I have taken the liberty of forwarding you this letter through the hands of your publisher Mr. Murray.3
I am Dr Sir | Yours very faithfully | Chas. H. Binstead
The | Revd. C. Darwin M.d.
In reading Variation, notices CD has not observed that after mallards have been domesticated their claws turn from black to white.
Please cite as
Darwin Correspondence Project, “Letter no. 6126,” accessed on 9 December 2016, http://www.darwinproject.ac.uk/DCP-LETT-6126