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Herschel6956

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[21 December 1846]
Source of text:
RS:HS 6.232
Summary:

Is beginning to work on the Annual Report. Has he any information about F. W. Bessel or J. J. L. Lalande's catalogue?

Contributor:
John Herschel Project

Herschel349

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[21 December 1846]
Source of text:
RGO 6.56.173
Summary:

Sends some books in response to JH's request for information about F. W. Bessel [see JH's 1846-12-20]; GA's daughter Hilda is very ill.

Contributor:
John Herschel Project

Herschel4784

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[21 December 1846]
Source of text:
RS:HS 1.174 (C: RGO 6.56.228)
Summary:

Lists the contents of a parcel being sent.

Contributor:
John Herschel Project

DCP-LETT-1038

From:
Charles Robert Darwin
To:
Andrew Crombie Ramsay
Date:
21 Dec [1846]
Source of text:
American Philosophical Society (Mss.B.D25.52)
Summary:

Discusses the geological origin of terraces.

Mentions R. I. Murchison’s paper ["On the superficial detritus of Sweden", Q. J. Geol. Soc. Lond. 2 (1846) pt 1: 349–81].

Comments on Tertiary beds of South America. Doubts that durable formations are now accumulating. Discusses formation of trap-rock. Notes effect of decomposition of lava; discusses action of submerged gravel on underlying rock.

Contributor:
Darwin Correspondence Project
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