Thanks AdeC for his interesting letter . The experiment strikes CD as a very valuable one. CD has forwarded the letter to Hooker, who is glad to make the trial. CD will have many experiments in progress next spring but he will open the packet of seeds and if they are numerous, will try a few himself.
Down. | Beckenham | Kent. S.E.
Oct 11 1869
My dear Sir
I am very much obliged for y
With my best thanks for your kindness & the most sincere respect, I remain | My dear Sir | yours very faithfully | Charles Darwin
- f1 6933.f1See letter from Alphonse de Candolle, 28 September 1869.
- f2 6933.f2CD refers to Carl Wilhelm von Nägeli's remarks in a paper on varieties of Hieracium pilosella (mouse ear hawkweed; see Nägeli 1867, p. 478).
- f3 6933.f3See letters to J. D. Hooker, 2 October  and 11 October 1869.
- f4 6933.f4CD probably refers to his experimental work on the comparative growth of plants raised from seeds of cross and self fertilised parents (see Correspondence vol. 18, letter to T. H. Farrer, 28 May ).