Search: Herschel, John in addressee 
John Herschel Project in contributor 
Herschel, John in correspondent 
1840-1849::1843 in date 
letter in document-type 
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Showing 61–80 of 211 items

Herschel13817

From:
George Dollond
To:
Sir John Herschel
Date:
[3 January 1843]
Source of text:
TxU:H/M-0167; Reel 1087
Summary:

Suggests modifying square base of JH's telescope to round base. Estimates cost at £80 to £100.

Contributor:
John Herschel Project

Herschel13818

From:
George Dollond
To:
Sir John Herschel
Date:
[6 January 1843]
Source of text:
TxU:H/M-0168; Reel 1087
Summary:

Refuses to risk GD's funds by giving cost estimate for unusual telescope, especially if R.S.L. expects GD to pay for any expenses over estimate. Regretfully stops manufacture of telescope.

Contributor:
John Herschel Project

Herschel14217

From:
John Phillips
To:
Sir John Herschel
Date:
[17 July 1843]
Source of text:
TxU:H/M-0428.15; Reel 1093
Summary:

The committee report on simultaneous magnetical and meteorological observations will be read at the B.A.A.S. meeting in Cork on 17 Aug.

Contributor:
John Herschel Project

Herschel14329

From:
William Henry Smyth
To:
Sir John Herschel
Date:
[17 February 1843]
Source of text:
TxU:H/M-0491; Reel 1093
Summary:

Extract from observations of 70 Ophiuchi by F. W. Bessel. Results agree with WS's measurements by different method and increase WS's confidence. Hopes for more information on Gamma Virginis before finalizing WS's manuscript.

Contributor:
John Herschel Project

Herschel14330

From:
William Henry Smyth
To:
Sir John Herschel
Date:
[23 June 1843]
Source of text:
TxU:H/M-0492; Reel 1093
Summary:

JH's theory of orbits of Castor and Gamma Virginis. Observations of Gamma Virginis by W. R. Dawes and by WS.

Contributor:
John Herschel Project

Herschel14331

From:
William Henry Smyth
To:
Sir John Herschel
Date:
[31 July 1843]
Source of text:
TxU:H/M-0493; Reel 1093
Summary:

Problems with computation of Gamma Virginis.

Contributor:
John Herschel Project

Herschel14362

From:
Edward Sabine
To:
Sir John Herschel
Date:
15 July [1843]
Source of text:
TxU:H/M-0517.6; Reel 1093
Summary:

Will send JH's report to JH in August. J. C. Ross will not be at Cork meeting, but JH may announce there that first year of Ross's observations at sea will appear in R.S.P.T.

Contributor:
John Herschel Project

Herschel14692

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[29 June 1843]
Source of text:
TxU:H/M-0659; Reel 1084
Summary:

Agenda items for next meeting of 'Committee for Superintending the Construction of Standards.' Compares English, French, Danish, and Prussian standards.

Contributor:
John Herschel Project

Herschel14733

From:
George Clerk
To:
Sir John Herschel
Date:
[22 June 1843]
Source of text:
TxU:H/M-0924; Reel 1083
Summary:

Commissioners of Treasury invite JH to join committee to oversee construction of 'New Parliamentary Standards of Weight and Measure.'

Contributor:
John Herschel Project

Herschel14816

From:
Francis Beaufort
To:
Sir John Herschel
Date:
[23 May 1843]
Source of text:
Hydrographic Office Letter Book
Summary:

Thanks JH for his letters about the Cape equatorial instrument.

Contributor:
John Herschel Project

Herschel1580

From:
Georg Merz
To:
Sir John Herschel
Date:
[20 September 1843]
Source of text:
TxU:H/M-0356
Summary:

Provides prices and delivery times for a variety of different sizes of refracting telescopes, as well as some mounting advice.

Contributor:
John Herschel Project

Herschel1648

From:
Richard Sheepshanks
To:
Sir John Herschel
Date:
1843 or later
Source of text:
RS:HS 16.134
Summary:

About organization of the executive of the R.A.S.

Contributor:
John Herschel Project

Herschel1658

From:
Sherwood & Co.
To:
Sir John Herschel
Date:
[26 May 1843]
Source of text:
RS:HS 16.144
Summary:

A note accompanying a new book on etymology and requesting JH comment on it.

Contributor:
John Herschel Project

Herschel1660

From:
Sherwood & Co.
To:
Sir John Herschel
Date:
[23 June 1843]
Source of text:
RS:HS 16.146
Summary:

Thanks for JH's 1843-6-16.

Contributor:
John Herschel Project

Herschel1674

From:
Alfred Smee
To:
Sir John Herschel
Date:
[28 February 1843]
Source of text:
RS:HS 16.160
Summary:

Describes experiments in the electrochemical decomposition of metallic salts.

Contributor:
John Herschel Project

Herschel1675

From:
Alfred Smee
To:
Sir John Herschel
Date:
[13 March 1843]
Source of text:
RS:HS 16.161
Summary:

Further on the electrochemical decomposition of metallic salts [see AS's 1843-2-28], and its relationship to photography.

Contributor:
John Herschel Project

Herschel1749

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[9 March 1843]
Source of text:
TxU:H/M-0629.1 (C: RGO 6.340.346)
Summary:

A new committee on standards is to be created to oversee the preparation and measuring of appropriate standard measures; seeks JH's opinion about asking Francis Baily and W. H. Miller to do the accurate weighing and measuring.

Contributor:
John Herschel Project

Herschel1750

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[29 June 1843]
Source of text:
TxU:H/M-0629.2
Summary:

A notice of meeting of the Standards Committee.

Contributor:
John Herschel Project

Herschel1751

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[13 July 1843]
Source of text:
TxU:H/M-0629.4 (C: RGO 6.368.667)
Summary:

Provides JH with the measurements from a series of observations of Gamma Virginis.

Contributor:
John Herschel Project

Herschel1752

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[30 August 1843]
Source of text:
TxU:H/M-0629.5
Summary:

Provides JH with information and advice about large lenses, which JH is considering for a Cape of Good Hope Observatory equatorial telescope.

Contributor:
John Herschel Project
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