Letter | Published:

The Mnemic Theory of Heredity

Nature volume 88, page 516 (15 February 1912) | Download Citation



FIFTEEN years ago NATURE allowed me to direct attention to certain variations in the arrangement of hair on the animal body, and this was followed by several other communications elsewhere on the same subject. The conclusion from these observed facts, which were very numerous, though intrinsically unimportant, was that only by the doctrine that acquired characters can be transmitted were they to be explained. No biologist has ever challenged this conclusion, expect by criticising some detail in the observations, or by saying, in effect, “Let us change the subject!” But this large body of small facts remains on record, and the smaller the individual facts are shown to be the stronger is the evidence that they are removed from the province of Selection.

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  1. February 12.



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