Search: 1870-1879 in date 
Herschel, John in author 
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Showing 41–60 of 128 items

Herschel10698

From:
Sir John Herschel
To:
Sir William Huggins
Date:
[19 May 1870]
Source of text:
RS:HS 10.60
Summary:

Further report on a paper and drawing of [Francis] Abbot [very similar to WH's 1870-5-18].

Contributor:
John Herschel Project

Herschel8973

From:
Sir John Herschel
To:
the R.A.S.
Date:
[19 May 1870]
Source of text:
R.A.S.M.N., 31 (1871), 228-30
Summary:

Expresses skepticism on the claims made by F. Abbott, observing from Tasmania, of the detection of changes in the Eta Argus nebula. Compares Abbott's drawings with drawings made by JH and and by JH's son John.

Contributor:
John Herschel Project

Herschel9351

From:
Sir John Herschel
To:
Georg Adolph Erman
Date:
[24 May 1870]
Source of text:
RS:HS 24.315
Summary:

About an application to the B.A.A.S. for a grant to fund the calculations related to reducing the magnetic observations of 1847-48.

Contributor:
John Herschel Project

Herschel8735

From:
Sir John Herschel
To:
Richard Anthony Proctor
Date:
[1 June 1870]
Source of text:
RS:HS 24.316
Summary:

Continues to explain matters in perturbation theory. Stresses need for careful observations in solar eclipses. Doubts the existence of the hypothetical intermercurial planet Vulcan.

Contributor:
John Herschel Project

Herschel3257

From:
Sir John Herschel
To:
John Tyndall
Date:
[7 June 1870]
Source of text:
RS:HS 24.317 (C: RI 571)
Summary:

Thanks for work on diamagnetism and magne-crystallic action [Researches on Diamagnetism (1870)], which JH is excited to read. Mentions long-abandoned plans for magnetization experiments. Envies those who can see JT's 'magic' experiments at Royal Institution.

Contributor:
John Herschel Project

Herschel3449

From:
Sir John Herschel
To:
'Chairman of the Eclipse Committee of the Royal Society'
Date:
[13 June 1870]
Source of text:
RS MC.9.96
Summary:

Cannot attend Eclipse Committee meeting but suggests that an observer carefully look for planets interior to Mercury's orbit, which would, if existing, reach conjunction during total solar eclipses.

Contributor:
John Herschel Project

Herschel6649

From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[15 June 1870]
Source of text:
RS:HS 24.318
Summary:

Of toads in rocks and stones, and martins in blocks of ice under rivers.

Contributor:
John Herschel Project

Herschel7233

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[17 June 1870]
Source of text:
RS:HS 24.319
Summary:

Writes about JH's health; justifies writing by sending some curves prepared by JH's son Alexander.

Contributor:
John Herschel Project

Herschel2627

From:
Sir John Herschel
To:
William Selwyn
Date:
[17 June 1870]
Source of text:
RS:HS 24.320
Summary:

Sends diagrams showing three new couplets of sunspots. The sun is entering a new phase of activity. Sends drawings made with a glass pen by his son Alexander.

Contributor:
John Herschel Project

Herschel3589

From:
Sir John Herschel
To:
Otto Wilhelm Struve
Date:
[10 July 1870]
Source of text:
RS:HS 24.321
Summary:

Thanks for many works, especially double star catalogs, about which JH requests further information, and which will help JH's attempt to compile digest of all measures of all known double stars.

Contributor:
John Herschel Project

Herschel6867

From:
Sir John Herschel
To:
Warren de La Rue
Date:
[14 July 1870]
Source of text:
RS:HS 24.322
Summary:

Comments on sunspot activity; agrees to inclusion of some paragraphs in a paper WD is writing.

Contributor:
John Herschel Project

Herschel8738

From:
Sir John Herschel
To:
Richard Anthony Proctor
Date:
[28 July 1870]
Source of text:
RS:HS 24.323
Summary:

Approves RP's method of preparing isographic projection charts of the distribution of bright stars, noting that JH's gauges of the southern stars are incomplete.

Contributor:
John Herschel Project

Herschel6596

From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[31 July 1870]
Source of text:
RS:HS 24.324
Summary:

Of talking fishes, a great meteor falling in Tripoli, and the 'madness of man' in the wake of the Franco-Prussian War.

Contributor:
John Herschel Project

Herschel922

From:
Sir John Herschel
To:
John Herschel (son)
Date:
1870-8-1 or earlier
Source of text:
JHS 5.44
Summary:

Talks about signatures needed for a fellowship certificate for the R.S.L.

Contributor:
John Herschel Project

Herschel278

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[2 August 1870]
Source of text:
RGO 6.6.109a
Summary:

Some comments about the proposed title change [see GA's 1870-7-31].

Contributor:
John Herschel Project

Herschel423

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[2 August 1870]
Source of text:
RGO 6.197.291
Summary:

Is preparing a catalogue of all double star observations, and is having much difficulty with the observations of J. H. Mädler.

Contributor:
John Herschel Project

Herschel921

From:
Sir John Herschel
To:
John Herschel (son)
Date:
[4 August 1870]
Source of text:
JHS 5.43
Summary:

Discusses the signatures needed for a fellowship certificate for the R.S.L. [see JH's 1870-8-1 or earlier]; comments on the arrival of son Alexander home from a holiday in Norway.

Contributor:
John Herschel Project

Herschel6597

From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[18 August 1870]
Source of text:
RS:HS 24.325
Summary:

Comments about some pieces of German poetry.

Contributor:
John Herschel Project

Herschel10699

From:
Sir John Herschel
To:
Sir William Huggins
Date:
[18 August 1870]
Source of text:
RS:HS 24.326
Summary:

Requests that WH sign the certificate for the election of JH's son John as a Fellow of the R.S.L.

Contributor:
John Herschel Project

Herschel10700

From:
Sir John Herschel
To:
Sir William Huggins
Date:
[21 August 1870]
Source of text:
RS:HS 24.327
Summary:

Apologizes for forgetting that since WH is on the Council of the R.S.L. he is precluded from signing [see JH's 1870-8-18].

Contributor:
John Herschel Project
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