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Darwin Correspondence Project

From [?]   [1872 or later]

Extracts from ‘The History of the Rise and Progress of the Killerby, Studley and Warlaby Herds of Shorthorns’ by William Carr— London— W. Ridgway, Piccadilly. Page 41.

“Yet even in such cases (where deterioration had not appeared) it is doubtless advisable to have occasional recourse to remote alliances, taking care to have as many reunionsQQQQ as possible between members of the same family; or, where using bulls nearly related to the cows, giving the preference to such as have been subjected to different conditions of life, it being a well known

Fourth Duke of Thornedale 17750 which was imported to England from the herd of Mr. S. Thorne, of Thornedale, State of New York. U.S.A.

The use of this bull at Wetherby to the Duchesses (same family as his own) was not attended with such results as would have arisen from an infusion of fresh blood.

In no case that I am aware of did such an opportunity occur as in this of practically testing the theory alluded to.

The above is quoted by Mr Lewes Fr. Allen in his “History of the Shorthorn Cattle” published at Buffalo in 1872, and he says of it, at page 113,

“Sound physiological principle that should be heeded by all carefree breeders”.

With reference to the above it may be stated that Col Gunter of Wetherby, Yorkshire, bought the bull


Extract from the History of the rise and progress of the Killerby, Studley and Warlaby herds of shorthorns by William Carr (1867).

Letter details

Letter no.
Charles Robert Darwin
Sent from
Source of text
DAR 159: 146

Please cite as

Darwin Correspondence Project, “Letter no. 13888,” accessed on 10 August 2020,

Also published in The Correspondence of Charles Darwin, vol. 20