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The lecture to which Crick referred in this letter was in part a response to the work of William Shockley and, particularly, of Arthur Jensen on what they considered the biological basis for differences in educational and economic achievement among different racial groups. Crick's usage of racial designations followed conventions still prevailing in the 1960s.
Original Repository:
The Wellcome Library for the History and Understanding of Medicine. Francis Harry Compton Crick Papers
Location:
Box: 11. Folder: PP/CRI/D/1/1/18
Rights:
Reproduced with permission of the Wellcome Library for the History and Understanding of Medicine. and http://library.wellcome.ac.uk/
Original Repository. Wellcome Library for the History and Understanding of Medicine. Francis Harry Compton Crick Papers. 11646. URL. http://archives.wellcome.ac.uk/