Ɛpsilon

To A. E. Graves   9 November 1881

Down

9 Nov ’81

Dear Sir

I can give no sort of explanation of the fact which you have been so kind as to communicate to me— I cannot believe in any power of vision, and should feel more inclined to speculate on a capacity for distinguishing damp air arising from the water in the hole1

Dear Sir | Yours faithfully | Ch Darwin

AE Graves Esq

Copy

1
See letter from A. E. Graves, 6 November 1881 and n. 2. CD discussed the sensitivity of worms to contact, including slight puffs of air, in Earthworms, p. 29.

Please cite as “DCP-LETT-13475,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-13475