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Showing 41–60 of 153 items

Herschel4840

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[23 April 1856]
Source of text:
RS:HS 1.229 (C: RGO 6.216.114)
Summary:

Wants one or more of JH's actinometers. Notes his suggestion about the zenith tube.

Contributor:
John Herschel Project

Herschel8108

From:
Sir John Herschel
To:
Edward Wolstenholme Ward
Date:
[24 April 1856]
Source of text:
RS:HS 18.374 (C: 23.168)
Summary:

Happy to hear that [new Sydney mint] is going well. JH confined with painful illness since Mar. 1855; still unable to walk or stand upright without support. Aluminium may be used in coins, but JH doubts it will replace iron in pots and pans. War is ended, but people worry about further Russian aggression.

Contributor:
John Herschel Project

Herschel469

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[24 April 1856]
Source of text:
RGO 6.216.115
Summary:

Has no actinometers available [see GA's 1856-4-23], but tells GA where he can get one; rhapsodizes about the beauty of nature around him, and the silliness of a person.

Contributor:
John Herschel Project

Herschel7875

From:
Henry Warburton
To:
Sir John Herschel
Date:
[28 April 1856]
Source of text:
RS:HS 18.79
Summary:

Heard JH not well. Offers him 'a nosegay, gathered from [JH's] own garden of the Differences of the Powers of Zero.' More notes on the self-repeating series. Developed two equations that HW may submit to Cambridge [Philosophical] Society.

Contributor:
John Herschel Project

Herschel7881

From:
Sir John Herschel
To:
Mr. Holloway
Date:
[29 April 1856]
Source of text:
RS:HS 18.85a
Summary:

Plans to sell JH's property at Upton, including tenement Holloway occupies, to neighbors.

Contributor:
John Herschel Project

Herschel12582

From:
Sir John Herschel
To:
B. Osborne
Date:
[5 May 1856]
Source of text:
RS:HS 23.169
Summary:

The Admiralty has given a grant for an astronomical expedition to the Peak of Teneriffe, and JH is now providing a list of details that should be observed in such an expedition.

Contributor:
John Herschel Project

Herschel13499

From:
Sir John Herschel
To:
Unidentified
Date:
[5 May 1856]
Source of text:
TxU:H/L-0733; Reel 1089
Summary:

JH's recommendations to Admiralty regarding experiments to be conducted by expedition to Teneriffe led by C. P. Smyth.

Contributor:
John Herschel Project

Herschel7876

From:
Henry Warburton
To:
Sir John Herschel
Date:
[7 May 1856]
Source of text:
RS:HS 18.80
Summary:

HW neglected to state principle from which he derived equation for eliminating differences. Expresses it in formula.

Contributor:
John Herschel Project

Herschel9885

From:
John Gorham
To:
Sir John Herschel
Date:
[8 May 1856]
Source of text:
RS:HS 8.219
Summary:

Has he repeated his experiments with the photographic representation of the prismatic structure? Regarding a numerical nomenclature for the colors.

Contributor:
John Herschel Project

Herschel7044

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[11 May 1856]
Source of text:
RS:HS 6.281
Summary:

Has not heard from him for a long time. Thought that the Government was going to turn the R.A.S. out of Somerset House. There is someone to come to the rescue of Richard Sheepshanks. Has not seen Charles Babbage for many years. Their views are incompatible. C. P. Smyth is off to Teneriffe so now is the time for JH to make suggestions. Has set up a committee to make by-laws.

Contributor:
John Herschel Project

Herschel4957

From:
Sir John Herschel
To:
Thomas Andrews
Date:
[12 May 1856]
Source of text:
RS:HS 23.171
Summary:

Formal note of thanks for TA's paper on ozone.

Contributor:
John Herschel Project

Herschel14056

From:
John Gellibrand Hubbard
To:
Sir John Herschel
Date:
[13 May 1856]
Source of text:
TxU:H/M-0278; Reel 1087
Summary:

Where in JH's evidence to Parliamentary Decimal Commission did JH give number of coins that require recoinage?

Contributor:
John Herschel Project

Herschel14829

From:
T[?] P[?]
To:
Sir John Herschel
Date:
[14 May 1856]
Source of text:
Hydrographic Office Letter Book
Summary:

Writes on behalf of the Lords of the Admiralty to thank JH for his suggestions relating to C. P. Smyth's trip to the peak of Teneriffe.

Contributor:
John Herschel Project

Herschel7877

From:
Henry Warburton
To:
Sir John Herschel
Date:
[15 May 1856]
Source of text:
RS:HS 18.81
Summary:

Glad that JH shows renewed interest in mathematics. Besides HW, JH, Augustus De Morgan, and Mr. Gerard, there appear to be no others interested in researching the differences of the powers of zero. Gave outline of HW's paper at Cambridge Philosophical Society. Plans to revise it according to suggestions from JH and De Morgan.

Contributor:
John Herschel Project

Herschel12792

From:
Sir John Herschel
To:
John Gellibrand Hubbard
Date:
[16 May 1856]
Source of text:
TxU:H/L-0197; Reel 1054
Summary:

Responds to Hubbard's inquiry about coinage.

Contributor:
John Herschel Project

Herschel4841

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[17 May 1856]
Source of text:
RS:HS 1.230
Summary:

Relating his experiments with the zenith tube.

Contributor:
John Herschel Project

Herschel7878

From:
Henry Warburton
To:
Sir John Herschel
Date:
[17 May 1856]
Source of text:
RS:HS 18.82
Summary:

Quick way to determine coefficients in tables of differences of powers of zero.

Contributor:
John Herschel Project

Herschel7045

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[19 May 1856]
Source of text:
RS:HS 23.172
Summary:

Comments on the state of JH's health, and on things astronomical and mathematical.

Contributor:
John Herschel Project

Herschel7046

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[20 May 1856]
Source of text:
RS:HS 6.282
Summary:

Is glad to hear his account of facts. Always thought he would recover his health. Gives one of his own mathematical formulae. Has no idea how the Decimal Coinage Commission is progressing.

Contributor:
John Herschel Project

Herschel4958

From:
Thomas Andrews
To:
Sir John Herschel
Date:
[21 May 1856]
Source of text:
RS:HS 1.344
Summary:

Thanks for JH's kind comments on TA's paper on ozone.

Contributor:
John Herschel Project
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