To William Robinson 5 May 1
Down. | Bromley. | Kent. S.E.
I write one line to thank you & to say that it wd. be superfluous to castrate the flowers, which are crossed with pollen from a distinct plant, grown under as different circumstances as may be. The flowers fertilised with their actually own pollen shd. certainly be protected from insects.2
Dear Sir | yours much obliged | C. Darwin
P.S. I was glad to see your Election to Linn. Soc.—3
Writes a line of thanks; includes instructions on procedure for crossing experiments.
Please cite as
Darwin Correspondence Project, “Letter no. 5080,” accessed on 17 January 2017, http://www.darwinproject.ac.uk/DCP-LETT-5080