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Darwin Correspondence Project

To G. G. Stokes   22 December 1875

Down, | Beckenham, Kent.

Dec 22 1875

My dear Sir

I am much obliged to you for so kindly writing to me.1 I am curious to hear about the feathers, but I am in no hurry. I will therefore wait & see whether Mr Sorby’s paper appears;2 if not, I will write to him—

With many thanks | yours sincerely | Charles Darwin


Stokes had told CD that Henry Clifton Sorby had determined the cause of the play of colours in the feathers of peacocks and humming-birds (see letter from G. G. Stokes, 20 December 1875).


CD is curious about the feathers but will wait to see whether H. C. Sorby’s paper appears.

Letter details

Letter no.
Charles Robert Darwin
George Gabriel Stokes, 1st baronet
Sent from
Source of text
Cambridge University Library (Add 7656: D72)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 10316,” accessed on 29 November 2021,

Also published in The Correspondence of Charles Darwin, vol. 23