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From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[8 October 1828]
Source of text:
RS:HS 10.63
Summary:

Requesting the opinion of JH's late father on the nebulae in Orion.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[29 May 1838]
Source of text:
RS:HS 10.64
Summary:

Calling his attention to the works of J. C. Poggendorf and Guillaume Weber. Does he know of the ingenious work carried out at the Cape by C. F. Gauss and Weber?

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[19 August 1842]
Source of text:
RS:HS 10.66
Summary:

Recounts details of his recent visit to England. Recent astronomical observations. Has JH heard from C. K. J. Bunsen about his award?

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[18 April 1844]
Source of text:
RS:HS 10.67
Summary:

Sending a letter via Ca'colia Gibson raising various queries regarding nebulae.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[8 June 1845]
Source of text:
RS:HS 10.68
Summary:

Sending the first volume of Kosmos. Queries regarding the Magellanic Clouds.

Contributor:
John Herschel Project
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:
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:
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:
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