From John Lubbock 25 March 1867
25 Mar. 67
My dear Mr. Darwin
I do not know whether you have read McLennans “Primitive marriage”.1
He refers the curious practise of Exogamy to the prevalence among certain tribes of female infanticide.
I should have thought that the objection to marriage between near relations might have had much to do with it.2
Can you tell me whether we have any evidence that any animals have an instinctive repugnance to breeding in sin.
Believe me always | Very sincerely | Yours | John Lubbock
C Darwin Esq
Discusses the practice of exogamy; asks if any animals have an instinctive repugnance to inbreeding.
Please cite as
Darwin Correspondence Project, “Letter no. 5459,” accessed on 20 February 2017, http://www.darwinproject.ac.uk/DCP-LETT-5459