To Leonard Horner 14 February [1861]1
Down Bromley Kent
Feb. 14th
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
Footnotes
Bibliography
Bonney, T. G. 1919. Annals of the Philosophical Club of the Royal Society written from its minute books. London: Macmillan.
Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 29 vols to date. Cambridge: Cambridge University Press. 1985–.
Horner, Leonard. 1861. Anniversary address of the president. Quarterly Journal of the Geological Society of London 17: xxxi-lxxii.
Origin: On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. By Charles Darwin. London: John Murray. 1859.
Summary
Variations in nature arise from unknown causes, accidentally or spontaneously, and are preserved by natural selection if beneficial.
Letter details
- Letter no.
- DCP-LETT-3062
- From
- Charles Robert Darwin
- To
- Leonard Horner
- Sent from
- Down
- Source of text
- American Philosophical Society (Mss.B.D25.)
- Physical description
- ALS 3pp
Please cite as
Darwin Correspondence Project, “Letter no. 3062,” accessed on 4 October 2023, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-3062.xml
Also published in The Correspondence of Charles Darwin, vol. 9