CD is too ill to write.
As for natural selection, he is more faithful to PM's "own original child" than PM is himself. To illustrate, CD relates the metaphor of an architect selecting well-shaped stones and rejecting ill-shaped ones. [See Variation 2: 431.]
Down. | Bromley. | Kent. S.E.
Mr Darwin begs me to thank you warmly for your letter which has interested him very much. I am sorry to say that he is so unwell as not to be able to write himself.
With regard to Natural Selection he says that he is not staggered by your striking remarks. He is more faithful to your own original child than you are yourself. He says you will understand what he means by the following metaphor.
Fragments of rock fallen from a lofty precipice assume an infinitude of shapes—these shapes being due to the nature of the rock, the law of gravity &c— by merely selecting the well-shaped stones & rejecting the ill-shaped an architect (called Nat. Selection could make many & various noble buildings.
Mr Darwin is much obliged to you for sending him your photograph. He wishes he could send you as good a one of himself. The enclosed was a good likeness taken by his eldest son but the impression is faint.
You express yourself kindly interested about his family. We have 5 sons & 2 daughters, of these 2 only are grown up. Mr Darwin was very ill 2 months ago & his recovery is very slow, so that I am afraid it will be long before he can attend to any scientific subject.
Dear Sir | yours truly | E. Darwin
- f1 4344.f1The year is established by the references to CD's illness, and by a similar description of CD's `metaphor' having been sent to Asa Gray earlier in 1863 (see letter to Asa Gray, 4 August , and n. 4, below).
- f2 4344.f2The letter from Matthew has not been found. CD and Matthew also corresponded in 1862 (see Correspondence vol. 10, letter to Patrick Matthew, 13 June  and letter from Patrick Matthew, 3 December 1862).
- f3 4344.f3Matthew claimed that he anticipated CD's concept of natural selection in his work on naval timber and arboriculture (Matthew 1831). CD conceded Matthew's priority in correspondence (see Correspondence vol. 8, letter to Gardeners' Chronicle, [13 April 1860], and letter to Joseph Dalton Hooker, 13 [April 1860]). CD also discussed Matthew's views in the `Historical sketch' that prefaced the third edition of Origin, pp. xiv--xv. See also Dempster 1996.
- f4 4344.f4Darwin's metaphor appears in Variation 2: 248--9 and 430. See also letter to Asa Gray, 4 August .
- f5 4344.f5The photograph has not been found.
- f6 4344.f6CD's photograph was taken by William Erasmus Darwin in April 1861; the photograph is reproduced as the frontispiece to Correspondence vol. 9.
- f7 4344.f7The references are to William and Henrietta Emma Darwin, who were 23 and 20 years old respectively; George Howard was 18, Elizabeth was 16, Francis was 15, Leonard was 13, and Horace was 12 (Freeman 1978).