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From:
Friedrich Wilhelm Heinrich Alexander von Humboldt
To:
Sir James Edward Smith
Date:
23 Jun 1814
Source of text:
GB-110/JES/COR/5/86, The Linnean Society of London
Summary:

Compliments.

Contributor:
The Linnean Society of London
From:
Friedrich Wilhelm Heinrich Alexander von Humboldt
To:
Sir James Edward Smith
Date:
18 Mar 1816
Source of text:
GB-110/JES/COR/5/87, The Linnean Society of London
Summary:

Sends pt. 1 of Bonpland and Kunth's "Genera et species"; hopes to visit Norwich.

Contributor:
The Linnean Society of London
From:
Friedrich Wilhelm Heinrich Alexander von Humboldt
To:
Sir James Edward Smith
Date:
12 Jul 1816
Source of text:
GB-110/JES/COR/5/88, The Linnean Society of London
Summary:

Introduces Kunth; appreciation of Smith's "Introduction to botany"; an article in the "Quarterly".

Contributor:
The Linnean Society of London
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:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[18 March 1829]
Source of text:
RS:HS 21.43
Summary:

In response to AH's 1828-10-8, JH writes to tell him of William Herschel's ideas on nebulae and the Magellanic Clouds.

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:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[31 July 1838]
Source of text:
RS:HS 10.65 & 21.255
Summary:

Regrets he was unable to meet him when in Hanover. Took no part in Guillaume Weber's operations at the Cape, but has become acquainted with them through Weber's volumes. Has pressed the Admiralty on the necessity of Magnetic Observatories at various places. Regarding AH's observations on the barometer.

Contributor:
John Herschel Project
From:
Friedrich Wilhelm Heinrich Alexander (Alexander) von Humboldt
To:
Charles Robert Darwin
Date:
18 Sept 1839
Source of text:
DAR 204: 180
Summary:

Praises CD’s Journal of researches and comments on some of CD’s observations and conclusions. Considers volcanic activity and its effect on past climate and changes in climate over time. Discusses glacial phenomena. Believes the climate of the coast of Peru is modified by cold sea-currents.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Friedrich Wilhelm Heinrich Alexander (Alexander) von Humboldt
Date:
1 Nov 1839
Source of text:
Staatsbibliothek zu Berlin – Preußischer Kulturbesitz (Nachl. Alexander von Humboldt, gr. Kasten 4, Nr. 22, Bl. 1–2)
Summary:

Gratified by AvH’s letter.

Sends data on temperature of the sea in the Galapagos, South Pacific, and the Abrolhos Islands.

Contributor:
Darwin Correspondence Project
From:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[1842?]
Source of text:
RS:HS 10.75
Summary:

Convey his thanks to the King for the Order of Merit. Regrets he did not see the King or AH when they visited London recently. Gives astronomical information.

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:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[1842-8-24 or later]
Source of text:
RS:HS 25.14.14
Summary:

Writes to send thanks by way of AH to the King of Prussia for the award of the Order of Merit. JH also comments on some astronomical matters.

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:
Sir John Herschel
To:
Alexander von Humboldt
Date:
1844-6-10 or [1844-5
Source of text:
RS:HS 22.197
Summary:

Extensive letter answering the many queries about nebulae raised by AH in his 1844-4-18 [letter contains notes made by AH].

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:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[2 November 1845]
Source of text:
RS:HS 22.253
Summary:

Sends thanks and very high praise for AH's first volume of Kosmos. Also comments on a number of other astronomical matters.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Mary Somerville
Date:
12 Jul 1849
Source of text:
MSH 6 / 355, Dep. c. 370, Bod, MS
Summary:

No summary available.

Contributor:
Brigitte Stenhouse
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