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1870-1879::1870 in date 
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Showing 101–120 of 270 items

Herschel1540

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[6 October 1870]
Source of text:
APS B.H435p.25
Summary:

Asks a whole series of silly riddles, and JH complains of not having heard from AD.

Contributor:
John Herschel Project

Herschel155

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[12 May 1870]
Source of text:
RGO 695.462
Summary:

About a grant to support [H. J. R.] Petersen while he carries out the reduction of terrestrial magnetic observations.

Contributor:
John Herschel Project

Herschel1553

From:
Sir John Herschel
To:
Charles Babbage
Date:
[9 December 1870]
Source of text:
BL Aaa 37199.524
Summary:

Thanks CB for receipt of a meteorological work by CB's son [B. H. Babbage], now in Australia. JH says he grows stupider every day and is a 'prisoner in the bonds of bronchitic tyranny.'

Contributor:
John Herschel Project

Herschel156

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[15 May 1870]
Source of text:
RGO 6.695.464
Summary:

Would support the application for a grant [see JH's 1870-5-12], but would like to see some changes in the way calculations are made.

Contributor:
John Herschel Project

Herschel1571

From:
Sir John Herschel
To:
Roderick Impey Murchison
Date:
[20 December 1870]
Source of text:
BL Aaa 46126.408
Summary:

Is pleased to hear of signs of recovery for RM from his ill health, and all wish him a complete recovery.

Contributor:
John Herschel Project

Herschel1606

From:
Edward Sabine
To:
Sir John Herschel
Date:
[24 April 1870]
Source of text:
Cambridge University Library 7656/H702
Summary:

Note to accompany forwarding of a letter; remarks on T. R. Robinson's upcoming cataract surgery.

Contributor:
John Herschel Project

Herschel1607

From:
Sir John Herschel
To:
Edward Sabine
Date:
[28 April 1870]
Source of text:
Cambridge University Library 7656/H727 (C: RS:HS 24.307)
Summary:

Comments on the effect of great temperature variations on the speculum of a telescope.

Contributor:
John Herschel Project

Herschel165

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[9 February 1870]
Source of text:
RGO 6.258.500
Summary:

Responds that R. A. Proctor's theory [see GA's 1870-2-5] is possible, and explains why.

Contributor:
John Herschel Project

Herschel1827

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[20 January 1870]
Source of text:
TxU:H/M-0645.1
Summary:

Responds to proposals of JH [?], and comments on the problems of the Royal Mint charges for coinage, especially coinage for foreign authorities.

Contributor:
John Herschel Project

Herschel1828

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[15 May 1870]
Source of text:
TxU:H/M-0645.2
Summary:

Refers to several items of correspondence, and then comments on the calculation of Gaussian earth-constants to a higher power than has been done to date.

Contributor:
John Herschel Project

Herschel2125

From:
Patrick Francis Robertson
To:
Sir John Herschel
Date:
[1 April 1870]
Source of text:
RS:HS 14.372
Summary:

Informs JH of plans for JH receiving 5 pounds of coca he had ordered.

Contributor:
John Herschel Project

Herschel2126

From:
Patrick Francis Robertson
To:
Sir John Herschel
Date:
[4 April 1870]
Source of text:
RS:HS 14.373
Summary:

Encloses letter giving charges for 5 pounds of coca ordered by JH [see PR's 1870-4-1]. Asks how PR should pay.

Contributor:
John Herschel Project

Herschel2229

From:
J. T. Raymond
To:
Sir John Herschel
Date:
[3 May 1870]
Source of text:
RS:HS 14.473
Summary:

Cannot afford fees he must pay to be ordained. Asks for financial assistance. Includes letters from a tutor and a professor.

Contributor:
John Herschel Project

Herschel2269

From:
G. W. Royston-Pigott
To:
Sir John Herschel
Date:
[1870].
Source of text:
RS:HS 14.506
Summary:

Asks permission to send JH several articles he wrote concerning optics.

Contributor:
John Herschel Project

Herschel2270

From:
Dr. Ricketts
To:
Sir John Herschel
Date:
[21 January 1870]
Source of text:
RS:HS 14.489
Summary:

Asks where JH's opinion that subsidence of land is caused by the pressure of material accumulation is stated in detail.

Contributor:
John Herschel Project

Herschel2271

From:
J. Ryle
To:
Sir John Herschel
Date:
[27 May 1870]
Source of text:
RS:HS 14.516
Summary:

Appreciates JH's opinion regarding variability of climate, although it disagrees with his own. His views are not provable and the question remains one of probability.

Contributor:
John Herschel Project

Herschel2272

From:
J. Ryle
To:
Sir John Herschel
Date:
[1870-5-27 or after]
Source of text:
RS:HS 14.517
Summary:

[Richard?] Proctor [?] agrees with JR's views on Cosmical Climates. Re-presents his theory because he feels he did not state it fairly in his earlier [1870-5-27] letter.

Contributor:
John Herschel Project

Herschel2273

From:
G. W. Royston-Pigott
To:
Sir John Herschel
Date:
[12 December 1870]
Source of text:
RS:HS 14.507
Summary:

Discusses his thoughts on high powered definition and residual aberration in microscopes. Thinks they may be applicable to telescopes.

Contributor:
John Herschel Project

Herschel2438

From:
Edward Sabine
To:
Sir John Herschel
Date:
[12 September 1870]
Source of text:
RS:HS 15.292
Summary:

Sends packet from [John] Hennessey to JH for his perusal. Discusses recent weather. Wants JH's opinion of self-recording meteorological instruments. Mentions wreck of the Hansa.

Contributor:
John Herschel Project

Herschel2439

From:
Edward Sabine
To:
Sir John Herschel
Date:
[17 September 1870]
Source of text:
RS:HS 15.293
Summary:

Sends telegram from the Germania. Discusses crew of Hansa [see 15.292]. Asks if JH wants certain experiments done at Kew. Troubled by [W. A.] Miller's sudden illness.

Contributor:
John Herschel Project
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