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Pritchard, Charles in addressee 
1860-1869::1866 in date 
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From:
Sir John Herschel
To:
Charles Pritchard
Date:
1866
Source of text:
RS:HS 14.101 (C: RS:HS 24.182)
Summary:

Discusses opinions of Charles Darwin's theories. Doubtful that the day has shortened due to tidal forces since the earth's beginning. Alexander Herschel helps in the revision of William Herschel's double star catalogue. Alex is preparing to lecture at Glasgow University.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Pritchard
Date:
[23 April 1866]
Source of text:
unknown
Summary:

Thanks CP and R.A.S. Council for funds to help with JH's catalogue of William Herschel's double stars. Alexander Herschel will begin work soon on the project.

Contributor:
John Herschel Project
From:
Charles Robert Darwin
To:
Charles Pritchard
Date:
12 Oct [1866]
Source of text:
A. Pritchard comp. 1897, p. 93
Summary:

Responds to CP’s sermon. Corrects CP’s confusion of what CD said about eyes of the Articulata with human eye,

and questions applicability of CP’s mathematical arguments about length of geological time needed for evolution.

Agrees he was foolish about the Wealden, now struck from later editions [Origin, pp. 285–7].

Contributor:
Darwin Correspondence Project