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DCP-LETT-605

From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
[Sept–Dec 1842]
Source of text:
American Philosophical Society (Mss.B.D25.30)
Summary:

Discusses relationship of subsidence to the formation of coral reefs.

Contributor:
Darwin Correspondence Project

DCP-LETT-605F

From:
Alexander Bridport Becher
To:
Charles Robert Darwin
Date:
1 Sept 1842
Source of text:
United Kingdom Hydrographic Office Archive (Letter Book no .10 (1841–2), p. 510)
Summary:

Francis Beaufort has instructed ABB to order three copies of Coral Reefs.

Contributor:
Darwin Correspondence Project

Herschel279

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[1 September 1842]
Source of text:
RGO 6.112.75 (ACCS: RS:HS 25.6.11)
Summary:

About eclipse observations of 1842, together with JH's speculations about the existence of an atmosphere around the sun. Enclosed is an eclipse drawing by Francis Baily.

Contributor:
John Herschel Project

Herschel3806

From:
Sir John Herschel
To:
Robert Hunt
Date:
1842-9
Source of text:
George Eastman House, 8.17 (C: RS:HS 22.133)
Summary:

Thanks for RH's paper on mineralogy. JH has explored use of mercury together with iron in photography.

Contributor:
John Herschel Project

Herschel6102

From:
Sir John Herschel
To:
Francis Baily
Date:
[1 September 1842]
Source of text:
RS:HS 3.229 (C: RS:HS 25.8.47)
Summary:

Has sent the papers on the eclipse to G. B. Airy.

Contributor:
John Herschel Project

Herschel6667

From:
J[oseph] Cranch
To:
Sir John Herschel
Date:
[1 September 1842]
Source of text:
RS:HS 5.370
Summary:

Would like JH's views on the suitabilities of the various makes of telescopes for their observatory.

Contributor:
John Herschel Project

Herschel6668

From:
Sir John Herschel
To:
J[oseph] Cranch
Date:
[1842-9-1 or later]
Source of text:
RS:HS 5.371 (C: RS:HS 25.13.18)
Summary:

Does not feel qualified to judge the merits of the various makes of telescopes. Suggests that the Astronomer Royal may be able to help or one of the other observatories.

Contributor:
John Herschel Project
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