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Quatrefages de Bréau, Armand de Quatrefages in correspondent 
1860-1869::1863::04 in date 
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From:
Charles Robert Darwin
To:
Jean Louis Armand (Armand de Quatrefages) Quatrefages de Bréau
Date:
[14 Apr 1863]
Source of text:
Bulletins de la Société d’Anthropologie de Paris 4 (1863): 378–9
Summary:

The niata is a very good case because the race is well established and must originate in South America. There is a description of the head by [Richard] Owen in the Descriptive catalogue of the osteological collection of the College of Surgeons.

Has observed modifications in the skeletons of rabbits, ducks, poultry, and pigeons. There is an extract about modifications in pigeons in the first chapter of Origin. Encloses a woodcut of crested or polish fowls; there is a change in the brain as well as in the exterior bones.

Contributor:
Darwin Correspondence Project