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Herschel, John in correspondent 
Humboldt, Alexander von in correspondent 
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From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[19 January 1850]
Source of text:
RS:HS 10.69
Summary:

Queries regarding JH's star lists. Sending magnetic information from A. T. Kupffer. Regarding the distribution of nebulae.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[11 February 1850]
Source of text:
RS:HS 23.84
Summary:

Answers questions raised by AH in his 1850-1-19 [letter contains notes made by AH].

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[31 July 1850]
Source of text:
RS:HS 10.70
Summary:

Astronomical queries, with particular reference to the Coal Sack. [Probably to JH, but unclear from letter.]

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[7 August 1850]
Source of text:
RS:HS 23.89 (C: TxU:H/M-1031.3; Reel 1083)
Summary:

Offers some information on 'Coal Sacks' in Southern Cross [see AH's 1850-7-31]. Happy to hear that volume 3 of Kosmos is near completion.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[11 August 1850]
Source of text:
RS:HS 10.71
Summary:

Is grateful for his constructive letter on the Coal Sack. Regarding the work of the Schlaginweit brothers.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[31 December 1850]
Source of text:
RS:HS 10.72
Summary:

News of the astronomical activities of his colleagues. Astronomical queries.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[13 August 1851]
Source of text:
RS:HS 10.73
Summary:

Introducing Adolphe Barth. Astronomical news and queries.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[8 November 1851]
Source of text:
RS:HS 23.110
Summary:

JH has been delayed in replying to AH's 1851-8-13 because of official duties at the Great Exhibition. Comments further on several astronomical matters.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[17 April 1852]
Source of text:
Sydney Ross Collection
Summary:

Thanks JH for JH's review of AH's Cosmos. Recommends E. H. DuBois-Reymond to JH's attention.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[6 May 1855]
Source of text:
RS:HS 10.74
Summary:

Sends a letter of praise for the family Herschel, including especially JH and his father, William.

Contributor:
John Herschel Project