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Spencer, Herbert in correspondent 
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From:
Sir John Herschel
To:
Herbert Spencer
Date:
[13 June 1853]
Source of text:
Univ. of London Library
Summary:

Thanks HS for his 'highly interesting' paper on the 'Universal Postulate,' which will appear in the Westminster Review.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[10 January 1859]
Source of text:
RS:HS 16.483
Summary:

Sending JH his Essays [Essays: Scientific, Political, and Speculative, 1857] and HS's 'Recent Astronomy and the Nebular Hypothesis,' the latter just published in the Westminster Review. Requests JH's comments on the latter publication.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Herbert Spencer
Date:
[16 January 1859]
Source of text:
RS:HS 16.485 (C: 23.253)
Summary:

Thanks HS for sending [see HS's 1859-1-10] HS's Essays and his 'Recent Astronomy and the Nebular Hypothesis.' Regarding the latter, points out a geometrical error, expresses reservations about HS's and Auguste Comte's views of the nebular hypothesis, and argues against HS's theory of sunspot structure. Agrees with HS's idea that some nebulae may be nearer than commonly thought.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[31 December 1859]
Source of text:
RS:HS 16.486
Summary:

[Responding to JH's 1859-1-16,] HS defends the nebular hypothesis, HS's theory of comets, and sets out HS's theory of sunspot formation, noting that John Tyndall supports it.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Herbert Spencer
Date:
12 January [1860]
Source of text:
RS:HS 16.484 (C: 23.294)
Summary:

[Responding to HS's 1859-12-31,] JH presents additional problems in the nebular hypothesis, critiques in detail HS's views of the distribution of cometary orbits, and argues against HS's theory of sunspot formation.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[18 January 1860]
Source of text:
RS:HS 16.487
Summary:

[Responding to JH's 1860}-1-12,] HS admits some of JH's objections to HS's views on distribution of cometary orbits, but attempts to salvage HS's cyclonic theory of sunspot formation.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[5 March 1860]
Source of text:
RS:HS 16.488
Summary:

Asks JH to become a subscriber to a work that HS is bringing out. Lists prominent persons who have already done so.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[18 April 1860]
Source of text:
RS:HS 16.490
Summary:

Thanks JH for agreeing [1860-3-17] to be a subscriber to HS's project and for JH's critique of HS's use of the term 'Absolute.' Admits that it has difficulties.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[17 March 1862]
Source of text:
RS:HS 16.491
Summary:

Recalls JH having written that an 'annulus of stars might be in equilibrium.' Asks where this claim appears in JH's writings.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[28 January 1863]
Source of text:
RS:HS 16.492
Summary:

Thanks JH for sending HS a copy of JH's dialogue ['On Atoms']. Comments on it.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[1 March 1864]
Source of text:
RS:HS 16.493
Summary:

Doubts the claim that Auguste Comte has significantly influenced English scientists. Asks whether JH believes Comte has influenced JH or others. Asks whether it is more difficult to calculate the moon's motion or the motion of a projectile through a resisting medium.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Herbert Spencer
Date:
[9 March 1864]
Source of text:
RS:HS 16.494 (C: 24.35)
Summary:

In response to HS's query [1864-3-1] about the influence of Auguste Comte on English scientists, JH refers HS to JH's 1845 B.A.A.S. presidential address. States that calculating the motion of a projectile through a resisting medium is extremely difficult.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[10 April 1865]
Source of text:
RS:HS 16.495
Summary:

Recounts efforts to establish The Reader as a respected weekly journal of science. Asks that JH submit material for publication in it.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[18 April 1865]
Source of text:
RS:HS 16.496
Summary:

The Reader does not plan to publish a list of contributors, but would welcome letters by JH, which would imply JH's support for the new weekly journal of science.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Herbert Spencer
Date:
[17 March 1866]
Source of text:
Univ. of London Library (CC: RS:HS 16.489 & C: 23.298)
Summary:

Will subscribe to HS's work as requested [see HS's 1860-3-5], but dissents 'from very large portions' of HS's views. Especially objects to HS's adoption of the 'Shibboleth of the Hegel & Schelling School of German Philosophy—"the Absolute."' [This letter misdated; correct date: 1860-3-17.]

Contributor:
John Herschel Project