To J. E. Gray 9 April 1
Down. | Beckenham | Kent. S.E.
My dear Gray
I had heard of, & given, the case of the difference in colour of the sexes of Lemur, but I was not at all aware of the great variability of the male & stability of the female.2 Therefore many thanks.
Yours very sincerely | Ch Darwin
Thanks for information on colour differences in sexes of Lemur.
Please cite as
Darwin Correspondence Project, “Letter no. 7670,” accessed on 3 December 2016, http://www.darwinproject.ac.uk/DCP-LETT-7670