Is sorry to have missed seeing WR.
Mentions some crossing experiments with Nymphaea and Euryale in which he would be interested, if WR ever had the chance to make them [see Cross and self-fertilisation, p. 365].
6. Queen Anne St
I was very sorry to have missed seeing you & hope I shall be more fortunate when I may next be in London; for I return home tomorrow morning.
I am much obliged for your obliging offer of assistance, which I will keep in
mind. I may mention (though it is improbable that you can aid
me) one point.— If you have Euryale ferox & if it produces
more than one flower at a time, I wish you would cross some &
fertilise some others with their own pollen, in order to see, when the seeds
are counted (which I would undertake), whether the cross aids at all in increasing
fertility. Properly pollen ought to be taken for the cross from a distinct
plant.— The Euryale is dead at Kew, where they
If you have two distinct plants of any Nymphæa, I
With my thanks for your kind offer. Dear Sir | Yours very faithfully | Ch. Darwin
- f1 5072.f1The date is established by the relationship between this letter, the letter to J. D. Hooker, [28 April 1866], and the letter to William Robinson, 5 May . In 1866, the intervening Sunday was 29 April.
- f2 5072.f2CD was in London from 21 April to 1 May 1866 (Emma Darwin's diary (DAR 242)). In the letter to J. D. Hooker, [28 April 1866], he wrote that he would return home on Monday 30 April, or Tuesday 1 May 1866.
- f3 5072.f3No letter from William Robinson offering assistance has been found.
- f4 5072.f4On CD's interest in Euryale ferox, see the letter to J. D. Hooker, [28 April 1866] and n. 6.
- f5 5072.f5CD refers to Robert Caspary. See letter to J. D. Hooker, [28 April 1866] and n. 6.