My dear Mr. Horner
I must just thank you for your note,2 but I will take advantage of your kind & considerate offer of discussing the points referred to till we meet.3 The latter point seems to me very intricate & I have often thought it over.—
Man does not cause any variation he only accumulates any which occur: I do not suppose that God intentionally gave the parent Rock-Pigeon a tendency to vary in size of Crop, so that man by selecting such variations should make a Pouter; so under nature, I believe variations arise, as we must call them, in our ignorance accidentally or spontaneously, & these are naturally selected or preserved from being beneficial to the successive individual animals in their struggles for Life.— I know not whether I make myself clear.—4
Believe me | My dear Mr Horner | Yours very sincerely | C. Darwin
Please cite as “DCP-LETT-3062,” in Ɛpsilon: The Charles Darwin Collection accessed on