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Showing 101–120 of 711 items

Herschel8696

From:
Sir John Herschel
To:
Heinrich Christian Schumacher
Date:
[7 February 1839]
Source of text:
NSUB Cod.Ms.Gauss 110
Summary:

Sends HS's observations of magnetic declination and dip near London for forwarding to Carl F. Gauss. Encloses a letter from Edward Sabine.

Contributor:
John Herschel Project
Text Online

Faraday1140

From:
Michael Faraday
To:
Henry Thomas De La Beche
Date:
8 February 1839
Source of text:
British Geological Survey MS GSM1/1 (p.66)
Summary:

No summary available.

Contributor:
Faraday Project

Herschel1337

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[8 February 1839]
Source of text:
RS:HS 17.281a
Summary:

Questions JH's intent to display 'photogenic drawings' to R.S.L.

Contributor:
John Herschel Project

Herschel2073

From:
William Reid
To:
Sir John Herschel
Date:
[8 February 1839]
Source of text:
RS:HS 14.323
Summary:

Discusses own efforts in meteorology. Must wait to print second edition of work on storms. Appreciates nomination for R.S.L., but has little time for such pursuits.

Contributor:
John Herschel Project

Herschel3860

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[8 February 1839]
Source of text:
unknown
Summary:

Asks JH to keep him updated on English research of the dynamics of light. Currently considering the 'propagation' of light waves, as distinguished from their mere 'preservation'; asks whether this is a new study.

Contributor:
John Herschel Project
Text Online

Faraday1141

From:
Charles William Pasley
To:
Michael Faraday
Date:
9 February 1839
Source of text:
IEE MS SC 2
Summary:

No summary available.

Contributor:
Faraday Project

Herschel1338

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[9 February 1839]
Source of text:
RS:HS 17.281b (C: RS:HS 22.2)
Summary:

Considerable comment on procedure for submitting paper to R.S.L. Urges WT to mention JH's method of washing with hyposulfite. Comments on some photographic experiments of WT.

Contributor:
John Herschel Project

Herschel8814

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[10 February 1839]
Source of text:
Science Museum Talbt 1/12 (draft 'much altered': RS:HS 17.281b & C: RS:HS 22.2
Summary:

JH welcomes WT's mentioning JH's method of fixing with hyposulfite. JH has put some of JH's images on display at R.S.L. Mentions JH's recent experiments relating to photography. Comments regarding a paper submitted to R.S.L. by WT and on some experiments of WT.

Contributor:
John Herschel Project

RS-MM-000727

From:
Spencer Joshua Alwyne Compton, 2nd Marquess of Northampton
To:
Lord Northampton
Date:
11 February 1839
Source of text:
MM/12/45, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

Herschel12034

From:
Roderick Impey Murchison
To:
Sir John Herschel
Date:
[11 February 1839]
Source of text:
RS:HS 12.397
Summary:

Has a few pounds surplus from the subscription for JH's vase and wonders if it could be used to supply a plinth for the pedestal. Does JH agree? Perhaps Lady Herschel can supply the wording.

Contributor:
John Herschel Project

Herschel1331

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[11 February 1839]
Source of text:
RS:HS 17.282
Summary:

Wants to withhold description of 'developing' process until it is perfected to obviate others using it. Also refers to second process to make 'positive' and 'negative.'

Contributor:
John Herschel Project

Herschel2892

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[12 February 1839]
Source of text:
RS:HS 15.383
Summary:

Asks permission to use information from JH's letter in Astronomische Nachrichten. Believes [Alexander von] Humboldt can explain observational anomalies that JH notes.

Contributor:
John Herschel Project
Text Online

Faraday1142

From:
Michael Faraday
To:
H. Williamson
Date:
12 February 1839
Source of text:
APS Misc MS Collection
Summary:

No summary available.

Contributor:
Faraday Project

Herschel8815

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[12 February 1839]
Source of text:
Science Museum Talbt 1/13 (ACCS: RS:HS 25.5.12 & C: TxU:H/L-0474; Reel 1055)
Summary:

JH will as WT requests stop mentioning JH's hyposulfite fixing process and await publication of WT's process. Reports in detail on some of JH's experiments relating to photography and to spectrum analysis. [In a P.S. dated 1839-2-13,] JH states: 'I have discovered your secret of fixing [or its] equivalent.'

Contributor:
John Herschel Project
Text Online

Faraday1143

From:
Alexander Philip Wilson Philip
To:
Michael Faraday
Date:
13 February 1839
Source of text:
RI MS F3 D169
Summary:

No summary available.

Contributor:
Faraday Project

Herschel3861

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 February 1839]
Source of text:
unknown
Summary:

In reply to WH's 1839-2-8 inquiry, JH believes that 'Skotodynamics' (the propagation of light waves) is a new line of research. Caroline Herschel is ecstatic about her Royal Irish Academy medal.

Contributor:
John Herschel Project

RS-MM-000728

From:
Spencer Joshua Alwyne Compton, 2nd Marquess of Northampton
To:
Lord Northampton
Date:
14 February 1839
Source of text:
MM/12/47, Royal Society
Summary:

No summary available.

Contributor:
Royal Society
Text Online

Faraday1144

From:
Michael Faraday
To:
John Frederick William Herschel
Date:
14 February 1839
Source of text:
RS MS HS 7.181
Summary:

No summary available.

Contributor:
Faraday Project

Herschel9430

From:
Michael Faraday
To:
Sir John Herschel
Date:
[14 February 1839]
Source of text:
RS:HS 7.181
Summary:

Saturday's experiments have brought a severe inflammation of the eyes so has been unable to use the aerolite. Returns it, but will try some experiments later if JH sends it back.

Contributor:
John Herschel Project

RS-MM-000729

From:
Peter Mark Roget
To:
P M Roget
Date:
14 February 1839
Source of text:
MM/12/48, Royal Society
Summary:

No summary available.

Contributor:
Royal Society
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