To Edward Frankland   20 May [1874]

Down, | Beckenham, Kent.

May 20th

My dear Prof. Frankland

I thank you much for sending me the sewage water & the Oleic Acid, both of which are treaures to me. From what I can as yet see I doubt whether the former will act.1

Yours very sincerely | Ch. Darwin

Postmark: MY 20 74

1
See letter to Edward Frankland, 14 May [1874]; CD was attempting to determine the sensitivity of the leaves of Drosera.

Please cite as “DCP-LETT-9462A,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-9462A