Description:
One page. Original folds. Very good condition. Nicely framed.Darwin discusses the hereditary transmission of behavior and a vivid example of the phenomenon from the opening chapter of The Expression of the Emotions in Man and Animals.
In this letter Darwin thanks Fanny Kellogg for "communicating the curious case of an habitual gesture, like that which I have described as inherited. I may add that since I wrote, the action has been transmitted to another generation. Your case shall be sent to Mr. Galton, who gave me the information."
In The Expression of the Emotions in Man and Animals (1872), Darwin had discussed the heritability of habitual gestures. There he cited at length a remarkable case related to him by his cousin Francis Galton. Galton, a distinguished scientist in his own right, was keenly interested in the inheritance in humans, and the two men often shared findings and theories. Darwin quoted Galton in The Expression of the Emotions on page 33:
"A gentleman of considerable… Read More