Search: Herschel, John in correspondent 
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1840-1849::1847 in date 
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From:
Sir John Herschel
To:
Johann Franz Encke
Date:
[17 February 1847]
Source of text:
AdWDDR Encke 49
Summary:

Informs JE what would be the cost for transcription of the G. W. Leibniz letter requested by JE [see JH's [1846]-11-5]. Mentions controversy over discovery of Neptune.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[20 February 1847]
Source of text:
RS:HS 15.203 (ACCS: RS:HS 25.7.4; C: RS:HS 22.303; RS MM 11.188)
Summary:

Has discovered a flaw in the theory of actinometer observations. Realizes that JH's actinometer observations at the Cape may be useless and that observations made at Government and East India observatories should be suspended.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Fitton
Date:
[20 February 1847]
Source of text:
RS:HS 25.7.5
Summary:

Expresses opinions about the medal fiasco at the R.A.S., and in so doing, also defends G. B. Airy. JH is very concerned about the mean attacks being made on various people over the Neptune discovery controversy. Makes especially strong statements in a PS written on Feb. 21.

Contributor:
John Herschel Project
From:
William Samuel Stratford
To:
Sir John Herschel
Date:
[22 February 1847]
Source of text:
TxU:H/M-0546.1; Reel 1093
Summary:

Apologizes to JH for worrying him about the printing of J. J. L. Lalande's Catalogue of Those Stars in the Histoire céleste française....

Contributor:
John Herschel Project
From:
William Samuel Stratford
To:
Sir John Herschel
Date:
[22 February 1847]
Source of text:
TxU:H/M-0546.2; Reel 1093
Summary:

Discusses the cost of printing and publishing J. J. L. Lalande's Catalogue of Those Stars in the Histoire céleste française and of N. L. Lacaille's Catalogue of 9766 Stars in the Southern Hemisphere [for which JH wrote the Preface]. Hopes to have both books published by the end of April.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
[23 February 1847]
Source of text:
RS:HS 15.204
Summary:

Copies of 1847-2-20 letter will be sent to observatories utilizing actinometers. Earlier series will be replaced with accurate figures. Suggests method to measure temperature in actinometers.

Contributor:
John Herschel Project
From:
Johann Franz Encke
To:
Sir John Herschel
Date:
[23 February 1847]
Source of text:
RS:HS 7.97
Summary:

Comments relating to G. W. Leibniz correspondence [see JE's 1846-9-22]; comments on naming the new planet Neptune.

Contributor:
John Herschel Project
From:
John P. Gassiot
To:
Sir John Herschel
Date:
[24 February 1847]
Source of text:
RS:HS 8.53
Summary:

W. R. Grove and JG would like an opportunity of discussion with JH on a scientific matter. Will visit him if necessary.

Contributor:
John Herschel Project
From:
William Samuel Stratford
To:
Sir John Herschel
Date:
[24 February 1847]
Source of text:
TxU:H/M-0546.3; Reel 1093
Summary:

Nothing more has been done with J. J. L. Lalande's Catalogue of Those Stars in the Histoire céleste française...; WS hopes to spend more time on it henceforth. WS also has been too busy to oversee the progress on the bust of Francis Baily.

Contributor:
John Herschel Project
From:
[John] Lee
To:
Sir John Herschel
Date:
[1 March 1847]
Source of text:
TxU:H/M-0329; Reel 1087
Summary:

Plans to send parcel to observatory at Cape of Good Hope; does JH have anything to include?

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[1 March 1847]
Source of text:
St. Andrews 10a (C: RS:HS 22.304)
Summary:

Believes all actinometric measurements made are useless because they did not take into account the rate of expansion of the liquid, which is not constant.

Contributor:
John Herschel Project
From:
John P. Gassiot
To:
Sir John Herschel
Date:
[2 March 1847]
Source of text:
RS:HS 8.54
Summary:

Regrets he was unable to see JH when in town last week. Outlines the scheme for a new club.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Smyth
Date:
[2 March 1847]
Source of text:
RS:HS 22.305
Summary:

Plans to write John Russell in an effort to secure a pension for Thomas Maclear; asks for R.A.S. and WS's support. Asks WS to obtain some facts relevant to pension request.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
[1847?]-3-3.
Source of text:
RS:HS 15.307
Summary:

Glad JH is writing the meteorology. Collecting materials for charts of ocean. Forwards some of this to JH for comments.

Contributor:
John Herschel Project
From:
James David Forbes
To:
Sir John Herschel
Date:
[4 March 1847]
Source of text:
St. Andrews LB IV, 214-16 (C: RS:HS 7.309)
Summary:

Sympathizes with JH's feelings of regret over actinometer readings. Has procured a new thermometer and carried out experiments toward correction of actinometers.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[3 March 1847]
Source of text:
RS:HS 10.125
Summary:

Is desirous of procuring impressions of prismatic spectra from all parts of the globe. These should show the chemical influence of the solar rays. The B.A.A.S. may be able to help or Colonel Edward Sabine. Can JH use his influence?

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Smyth
Date:
[4 March 1847]
Source of text:
RS:HS 22.306
Summary:

Asks WS if possible to enclose a note by Francis Beaufort to John Russell concerning request for pension for Thomas Maclear. Lays aside double star observations; continues work on orbit equation.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Unidentified
Date:
[4 March 1847]
Source of text:
WT 67597.3
Summary:

In response to a request, JH is not willing to part with any letters from his father, William, but will send one of William Herschel's notes to his sister, Caroline.

Contributor:
John Herschel Project
From:
John P. Gassiot
To:
Sir John Herschel
Date:
[5 March 1847]
Source of text:
RS:HS 8.55
Summary:

Thanks for his note. Is writing to remove any misconceptions JH may have about the proposed new club. Michael Faraday will be joining on condition that there will be no dinners.

Contributor:
John Herschel Project
From:
Charles Piazzi Smyth
To:
Sir John Herschel
Date:
[6 March 1847]
Source of text:
RS:HS 16.230
Summary:

W. S. Jacob sends Alpha Centauri observations to R.A.S.; uses JH's Cape Results as a guide to double stars.

Contributor:
John Herschel Project
Correspondent
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