Search: Herschel, John in author 
John Herschel Project in contributor 
1840-1849::1845 in date 
letter in document-type 
Sorted by:

Showing 2140 of 159 items

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[8 October 1845]
Source of text:
RGO 6.675.522
Summary:

How does one jog the memory of the First Lord of the Treasury [see GA's 1845-10-3]?

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Richard Taylor
Date:
[16 April 1845]
Source of text:
RS:HS B26.11
Summary:

Is very critical of a series of three foreign memoirs that JH believes certainly should not be published. Concludes with a strange postscript on catalepsy.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Stuart Mill
Date:
16?] July [1845
Source of text:
RS:HS 12.332 & 22.245
Summary:

Do as JM suggests. Further comments on JH's dispute with the theories of Auguste Comte.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[10 October 1845]
Source of text:
RGO 6.675.525
Summary:

S. J. A. Compton [Lord Northampton] has addressed a private letter to Robert Peel [see GA's 1845-10-9].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Bellas Greenough
Date:
1845-12-24 or later
Source of text:
RS:HS B26.18
Summary:

AS JH understands the matter [see GG's 1845-12-23], GG is the only knowledgeable member of the committee, and so it will be up to GG to present information and propose some means of moving ahead. JH makes some critical remarks about the nature of B.A.A.S. committees.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
1845-9-29 or earlier
Source of text:
RGO 6.675.528
Summary:

Robert Peel has suggested that the Admiralty has money available to pay for improvements in scientific instruments of value to navigation.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[30 September 1845]
Source of text:
RGO 6.675.532
Summary:

Encourages GA to ask the Admiralty about the implications of Robert Peel's statements [see JH's 1845-9-29 or earlier].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Hasledine Pepys
Date:
[9 November 1845]
Source of text:
RS:HS 13.339 & 22.256
Summary:

Asks WP to recall the particulars of an experimental session [see WP's 1823-3-11] where JH tried to demonstrate the polarization of light by an electrical current in a coil of wire.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Hugh Percy (3rd Duke of Northumberland)
Date:
[12 June 1845]
Source of text:
RS:HS 13.356 inc & 22.243
Summary:

Sends copies of plates and details about them, and expects printing of JH's Cape Results to begin early in 1846.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Georg Merz & Son
Date:
[7 November 1845]
Source of text:
RS:HS 25.6.29
Summary:

Is now finally empowered to order the telescope he inquired about [see JH's 1843-9-2].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Georg Merz & Son
Date:
[24 December 1845]
Source of text:
RS:HS 25.6.31
Summary:

Some modifications to the telescope ordered [see JH's 1845-11-7].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[11 May 1845]
Source of text:
TxU:H/L-0015; Reel 1054
Summary:

Gives reasons why telescope for Cape Observatory should be as perfect as possible. Doubts that its 'finder' is adequate.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[10 October 1845]
Source of text:
TxU:H/L-0016; Reel 1054
Summary:

Results of testing at Collingwood by JH and W. R. Dawes of two 8-inch object glasses made by William Simms for Cape of Good Hope observatory.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[14 October 1845]
Source of text:
TxU:H/L-0017; Reel 1054
Summary:

Supplement to JH's report [see JH's 1845-10-10] on object glasses for Cape Observatory. Different results at lower powers when observing planets.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Chairman H.E.I.C. Court of Directors
Date:
1845-7
Source of text:
TxU:H/L-0133; Reel 1054
Summary:

B.A.A.S. resolutions include closing H.E.I.C. magnetic and meteorological observatories at Simla and Singapore but continuing those in Bombay and Madras. Propose magnetic survey of India Sea.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John R. Hind
Date:
[6 October 1845]
Source of text:
TxU:H/L-0192; Reel 1054
Summary:

Rejoices that RH is studying orbit of Mu2 Bootis. Suggests way to simplify calculations. Compares orbits for Gamma Virginis calculated by various observers. Notice of systematic errors.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
the London Times
Date:
[19 April 1845]
Source of text:
TxU:H/L-0230; Reel 1054
Summary:

Responds to recently printed letter by James South. Denies South's assertion and confirms that William Herschel did discover two interior satellites of Saturn with 40-feet reflector telescope in 1789.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1845-4-22 or later]
Source of text:
TxU:H/L-0240; Reel 1054
Summary:

Privately acknowledges lack of clarity in William Herschel's report of discovering Saturn's inner rings, but JH was hurt by James South's public refutation of that discovery and by [T. R.] Robinson's abrupt refusal to communicate. Reviews WH's papers to demonstrate falsity of South's claim. Asks TM's opinion.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Chichele Plowden
Date:
[14 March 1845]
Source of text:
TxU:H/L-0314; Reel 1054
Summary:

Encourages board of directors to pay for publication of magnetic and meteorological observations made at four H.E.I.C. observatories. Names countries that participated in global survey.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[20 January 1845]
Source of text:
TxU:H/L-0363; Reel 1054
Summary:

Will write to Court of Directors to ask H.E.I.C. to publish observations from Indian observatories. Needs to know where observations are stored, whether Humphrey Lloyd has reduced them, ES's reasons for making this request, best method for preparing data, and probable expense. Must go to Slough tomorrow to do business with former tenant.

Contributor:
John Herschel Project