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1860-1869::1864 in date 
Herschel, John in author 
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Tyndall2111

From:
John Herschel
To:
John Tyndall
Date:
June 18 1864
Source of text:
HS 393b; MS JT/1/H/101; MS JT/1/TYP/2/524-7, RS; RI
Summary:

No summary available.

Contributor:
Tyndall Project

Herschel880

From:
Sir John Herschel
To:
the London Times
Date:
[18 June 1864]
Source of text:
JHS 5.1
Summary:

Supports, for scientific and commercial reasons, the retention of the British system of measures, arguing against adoption of the metric or decimal system.

Contributor:
John Herschel Project

Herschel7782

From:
Sir John Herschel
To:
the R.A.S.
Date:
[29 June 1864]
Source of text:
RAS: MSS Add.29 [suppl.]
Summary:

Learned that R.A.S. plans to use aplanatic lenses for solar studies. Submits set of unpublished tables by W. L. Newman [see Newman's 1845-2-18] for calculating radii of such lenses. Refers to work of this kind by Josef Fraunhofer, [G. P.] Bond, K. A. Steinheil, and C. F. Gauss.

Contributor:
John Herschel Project

Herschel10277

From:
Sir John Herschel
To:
James Haig[?]
Date:
[1 July 1864]
Source of text:
RS:HS 9.160 & 24.50
Summary:

Thanks for his books. Encloses one of his own pamphlets on Atoms, which will show his personal view of mind versus matter. Comments on some of Haig's terminology.

Contributor:
John Herschel Project

Herschel8941

From:
Sir John Herschel
To:
the London Times
Date:
[1 July 1864]
Source of text:
London Times (July 4, 1864), p. 11, col. 2
Summary:

Responds to objections published in the Times of 30 June to JH's 1864-6-18 letter to the Times regarding the introduction of the metric system in England; JH opposes this and goes on to explain the scientific basis of the British system.

Contributor:
John Herschel Project

Herschel9223

From:
Sir John Herschel
To:
William Whewell
Date:
[1864-7]
Source of text:
TC, Camb. Add. Ms.a.207114 (C: RS:HS 24.65)
Summary:

Responds to WW's comments on JH's Iliad translation. Sending Book X.

Contributor:
John Herschel Project

Herschel8942

From:
Sir John Herschel
To:
the London Times
Date:
[4 July 1864]
Source of text:
London Times (July 6, 1864), p. 7, col. 2
Summary:

Corrects typographical errors in JH's recent letters [1864-6-18 & 1864-7-1] to the Times.

Contributor:
John Herschel Project

Herschel4069

From:
Sir John Herschel
To:
William Henry Smyth
Date:
[4 July 1864]
Source of text:
RS:HS 24.51
Summary:

Sends WS William Herschel's chromatic observations of Beta Cygni. Completing 'Catalogue of Nebulae.' Works on translating Book IX of Iliad; fears he will not complete translation of Iliad.

Contributor:
John Herschel Project

Herschel7165

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[14 July 1864]
Source of text:
RS:HS 24.52
Summary:

Comments on the state of JH's health; about ciphers and about decimalization.

Contributor:
John Herschel Project

Herschel7167

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[18 July 1864]
Source of text:
RS:HS 24.53
Summary:

Comments on remedies suggested by AD [see AD's 1864-7-15]; on ciphers.

Contributor:
John Herschel Project

Herschel4130

From:
Sir John Herschel
To:
Isaac Todhunter
Date:
[18 July 1864]
Source of text:
RS:HS 24.54
Summary:

Cannot find the source of supposed Wilhelm Struve probability calculation; believes he has made a mistake. Regrets the error was not noticed in time to correct the seventh edition of Outlines Astr.

Contributor:
John Herschel Project

Herschel3563

From:
Sir John Herschel
To:
John Tyndall
Date:
[18 July 1864]
Source of text:
RS:HS 17.393b (C: 24.48; C: RI 524-7)
Summary:

Thanks for and comments on papers on scientific history and molecular physics, particularly on a magnetic experiment and on dynamical efficiency of coal relative to motion theory of light and heat. Comments on nature of heat, 'vis viva.' Deplores laxity with which physicists use and confuse terms 'force,' 'motion,' and 'energy.'

Contributor:
John Herschel Project

Herschel10991

From:
Sir John Herschel
To:
Henry Bence Jones
Date:
[27 July 1864]
Source of text:
RS:HS 10.337 (C: RS:HS 24.55)
Summary:

His son informs him of the projected series of lectures at the Royal Institution on weather forecasting and meteorology. Comments on this.

Contributor:
John Herschel Project

Herschel904

From:
Sir John Herschel
To:
Margaret Brodie Herschel
Date:
[6 August 1864]
Source of text:
JHS 5.24
Summary:

About family finances, JH's health, and activities around the house.

Contributor:
John Herschel Project

Herschel8946

From:
Sir John Herschel
To:
the R.A.S.
Date:
[8 August 1864]
Source of text:
R.A.S.M.N., 24 (1864), 220-1
Summary:

Describes a revolving eyepiece that could protect the eye from excess light in solar observation.

Contributor:
John Herschel Project

Herschel4324

From:
Sir John Herschel
To:
William Henry Smyth
Date:
[9 August 1864]
Source of text:
RS:HS 24.56
Summary:

Believes he will complete Iliad.

Contributor:
John Herschel Project

Herschel905

From:
Sir John Herschel
To:
Margaret Brodie Herschel
Date:
[10 August 1864]
Source of text:
JHS 5.25
Summary:

Some friction has arisen between JH and MH over finances, and JH apologizes; JH is describing the newly-acquired horse, and reports on mail received and the activities of the children.

Contributor:
John Herschel Project

Herschel13044

From:
Sir John Herschel
To:
James Calder Stewart from Isabella Herschel
Date:
[18] August 1864
Source of text:
TxU:H/L-0457; Reel 1055
Summary:

News of Herschel family. JH asks for information about 'India Stock' [investments].

Contributor:
John Herschel Project

Herschel7742

From:
Sir John Herschel
To:
Richard Christopher Carrington
Date:
[18 August 1864]
Source of text:
RAS:JH Archive 13/2.4; Reel 10
Summary:

If RC's formulas for sunspots are correct, then 'trade-wind theory' is challenged and sun's photosphere may behave as envelope circulating around sun according to laws of planetary motion. Questions formula relating to sunspot velocity.

Contributor:
John Herschel Project

Herschel7170

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[19 August 1864]
Source of text:
RS:HS 24.57
Summary:

Comments on minting of coins [see AD's 1864-8-18], the state of JH's health, and the need for an elocution teacher for one of JH's sons.

Contributor:
John Herschel Project
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