Search: 1840-1849::1841::02::20 in date 
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Faraday1339

From:
Thomas Phillips
To:
Michael Faraday
Date:
20 February 1841
Source of text:
RI MS Conybeare Album, f.34
Summary:

No summary available.

Contributor:
Faraday Project

Herschel2844

From:
Edward Sabine
To:
Sir John Herschel
Date:
[20 February 1841]
Source of text:
RS:HS 15.124
Summary:

Francis Beaufort will send JH sheets from James Ross covering trip from the Cape to Van Diemen's Land. Laments Charles Riddell's leave of absence but acknowledges replacement Lieutenant Younghusband's skill. States that C. F. Gauss has informed him by letter of the location of the south magnetic pole. Informs of [Edward] Belcher's letter concerning various magnetic stations in the South Pacific.

Contributor:
John Herschel Project

Herschel3947

From:
Sir John Herschel
To:
Robert Hunt
Date:
[20 February 1841]
Source of text:
George Eastman House, 5.17
Summary:

Unable to give any specifics concerning Louis Jacques Mandé Daguerre's new photographic process. Discovered that old paper specimens produced a much better representation of the spectrum in its natural colors than those obtained at the date of JH's paper; these results are 'light on a dark ground,' which makes JH more hopeful that colored photography will someday be perfected. Has experimented with vegetable substances.

Contributor:
John Herschel Project

Herschel5471

From:
Francis Beaufort
To:
Sir John Herschel
Date:
[20 February 1841]
Source of text:
RS:HS 3.373 & ACC: Hydrographic Office Letter Book
Summary:

Edward Sabine has asked him to forward J. C. Ross's notes. If JH has finished with Thomas Maclear's letter would he return it.

Contributor:
John Herschel Project

Herschel9505

From:
Robert FitzRoy
To:
Sir John Herschel
Date:
[20 February 1841]
Source of text:
RS:HS 7.250
Summary:

Was pleased to receive the letter and old papers. Remembers his time at the Cape with pleasure. Has been interested, but not convinced, by J. C. Ross's soundings.

Contributor:
John Herschel Project
Text Online

Tyndall0043

From:
John Tyndall
To:
Emma Tyndall
Date:
Saturday night, (21st Feb. 1841)
Source of text:
MS JT/1/10/3207-9, RI
Summary:

No summary available.

Contributor:
Tyndall Project
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