Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Edsall here continued his discussion with Crick on the interaction of heredity and environment in the formation of intelligence, an issue brought to the forefront of public debate in the late 1960s by the writings of William Shockley and Arthur Jensen. In particular Edsall here responded to Crick's call for a "Twins Institute" that would encourage parents of identical twins to give up one twin for adoption as a way of expanding the pool of subjects for studies on identical twins raised separately. To scientists, such studies were ideally suited to distinguish the effects of heredity and environment on human development.
Original Repository:
The Wellcome Library for the History and Understanding of Medicine. Francis Harry Compton Crick Papers
Original Repository. Wellcome Library for the History and Understanding of Medicine. Francis Harry Compton Crick Papers. 11646. URL. http://archives.wellcome.ac.uk/