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Herschel, John in author 
1870-1879::1871 in date 
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From:
Sir John Herschel
To:
William John Macquorn Rankine
Date:
[14 January 1871]
Source of text:
RS:HS 14.468 (C: RS:HS 24.343 & CC: JHS 5.40)
Summary:

Writes to thank WR for the paper on the thermodynamic theory of waves he sent; JH is too ill to respond or even to deal with the analysis in the paper. Nonetheless, JH does make some suggestions for WR's consideration.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Nature
Date:
[21 January 1871]
Source of text:
RS:HS 19.161b
Summary:

Requests publication of a notice of the recalculation by H. J. R. Petersen of the Gaussian constants of terrestrial magnetism.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Georg Adolph Erman
Date:
[22 January 1871]
Source of text:
RS:HS 7.107
Summary:

Has sent a note to Nature stating the details of the grant paid by the B.A.A.S. to H. J. R. Petersen for magnetic observations.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Ellis Dudgeon
Date:
[22 January 1871]
Source of text:
APS B.H435p.26 (C: RS:HS 24.348)
Summary:

Comments on use of 'air' lens rather than glass in some circumstances.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Andrews
Date:
[24 January 1871]
Source of text:
RS:HS 1.345 & 24.344
Summary:

Thanking him for his paper on heat developed in combination of acids and bases. Commenting on the various makes of calorimeters.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Georg Adolph Erman
Date:
[26 January 1871]
Source of text:
RS:HS 24.349
Summary:

Note to accompany a translation of one of GE's writings; also comments on the 'reform' of the German language.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[31 January 1871]
Source of text:
RS:HS 24.350
Summary:

Comments on spelling reform being attempted in Germany and the United States, and being proposed in England.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Richard Anthony Proctor
Date:
[2 February 1871]
Source of text:
RS:HS 24.351
Summary:

Thanks RP for sending RP's Sun. Suggests a theory that the solar corona, rather than originating in the earth's atmosphere, is produced by reflection from meteoric dust. Informs RP that he has completed a catalogue of all observations of double stars.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Andrews
Date:
[5 February 1871]
Source of text:
RS:HS 1.347 & 24.345
Summary:

Regarding patents, and quoting the results of experiments by foreigners without acknowledging the sources.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Richard Anthony Proctor
Date:
[7 February 1871]
Source of text:
RS:HS 24.352
Summary:

Replies to RP's objections to his theory of the solar corona. Informs RP that William Herschel's larger telescopes were used as front focus. Suggests explanation of his father's disconfirmed discovery of four additional Uranian moons.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[9 February 1871]
Source of text:
RS:HS 24.353
Summary:

Comments on the attitude of the French towards the Germans in light of the war.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Warren de La Rue
Date:
[11 February 1871]
Source of text:
RS:HS 24.354
Summary:

Comments on sunspot activity.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John P. Gassiot
Date:
[17 February 1871]
Source of text:
RS:HS 8.68 (C: RS:HS 24.355 & 356)
Summary:

Comments on R.S.L. acquiring Kew Observatory building for creation of magnetic observatory [see JG's 1871-2-13].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Herschel (son)
Date:
[19 February 1871]
Source of text:
JHS 5.39 (C: 5.38 omitting the last paragraph)
Summary:

Mostly about how to deal with the implications of local attractions in geodetic surveying [see JH's 1870-11-17]; JH has had the mineral son John sent analyzed and sends the results. JH commiserates with daughter-in-law Mary's illness.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Alfred Brothers
Date:
[20 February 1871]
Source of text:
RS:HS 24.357
Summary:

Thanks for, and comments on, some photographs of the solar corona.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Andrews
Date:
[22 February 1871]
Source of text:
RS:HS 24.346
Summary:

Thanks TA for information on ice calorimetric work.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Richard Anthony Proctor
Date:
[1 March 1871]
Source of text:
RS:HS 24.358
Summary:

Admits that recent heliographs of the corona favor the eruption theory over JH's meteoric theory. Notes that this raises question of the nature of the photosphere. Cites recent results showing link between sunspot formation and terrestrial magnetic disturbances.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Spottiswoode
Date:
[9 March 1871]
Source of text:
TxU:H/L-0389; Reel 1054
Summary:

Needs address of [H. J. R.] Petersen of Kiel, to whom JH must send grant of £50 from B.A.A.S. for reduction of Gaussian constant. Gives address of G. A. Erman. JH's poor health.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Spottiswoode
Date:
[12 March 1871]
Source of text:
TxU:H/L-0390; Reel 1054
Summary:

Thanks WS for volunteering to forward B.A.A.S. grant to G. A. Erman while JH is ill.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[16 March 1871]
Source of text:
RGO 6.134.128
Summary:

Does not know what commitment of John Herschel (JH's son) would be for December 1871, but encourages GA to communicate with him [see GA's 1871-3-13].

Contributor:
John Herschel Project