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1870-1879::1871 in date 
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From:
Julia Margaret Cameron
To:
Sir John Herschel
Date:
[6 January 1871]
Source of text:
RS:HS 5.169
Summary:

Is grateful for the interest he takes in her son and for his letter. Comments on the German war. Has a house full of visitors. It has been very cold and they have been without water.

Contributor:
John Herschel Project
From:
Daniel Vaughan
To:
Sir John Herschel
Date:
[9 January 1871]
Source of text:
RS:HS 17.460
Summary:

Sends an abstract of his research entitled 'The Effects of Tide on Planetary Motion.'

Contributor:
John Herschel Project
From:
Charles Davies
To:
Sir John Herschel
Date:
[11 January 1871]
Source of text:
RS:HS 6.474
Summary:

Has sent a work on the metric system in France, which includes JH's own valuable lecture.

Contributor:
John Herschel Project
From:
B. G. Jenkins
To:
Sir John Herschel
Date:
[13 January 1871]
Source of text:
RS:HS 10.314
Summary:

Sending a long letter proving one of JH's theories regarding the sun and confirmation of one of William Herschel's observations concerning Saturn.

Contributor:
John Herschel Project
From:
B. G. Jenkins
To:
Sir John Herschel
Date:
[13 January 1871]
Source of text:
RS:HS 10.315
Summary:

Thanks for JH's remarks on his own 'What is matter'; comments on these. Also regarding JH's theory of the sun's repulsive force and William Herschel's observations on the strange shape of Saturn.

Contributor:
John Herschel Project
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:
William John Macquorn Rankine
To:
Sir John Herschel
Date:
[20 January 1871]
Source of text:
RS:HS 14.469
Summary:

Will mention JH's subject for investigation to Sir William Thomson. Is busy with Committee on Ships of War.

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:
Robert Ellis Dudgeon
To:
Sir John Herschel
Date:
[23 January 1871]
Source of text:
RS:HS 6.507
Summary:

Is grateful for his comments on his own paper on vision. Would he refer him to the work by Mr. Chopal on lens.

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:
Richard Anthony Proctor
To:
Sir John Herschel
Date:
[31 January 1871]
Source of text:
RS:HS 14.129
Summary:

Has sent JH a copy of his new book [The Sun].

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:
Thomas Andrews
To:
Sir John Herschel
Date:
[31 January 1871]
Source of text:
RS:HS 1.346
Summary:

Replying to JH's letter of 24 Jan. 1871. Thanking him for his suggestions. Has not seen JH's Cape Observations. Has seen report of R. W. Bunsen's experiments. Comments on these experiments.

Contributor:
John Herschel Project
From:
H. E. Hubbard
To:
Sir John Herschel
Date:
[2 February 1871]
Source of text:
RS:HS 10.212
Summary:

Would like his views on the correct definition of a billion, to settle an argument.

Contributor:
John Herschel Project
From:
John S. Harris
To:
Sir John Herschel
Date:
[2 February 1871]
Source of text:
RS:HS 10.162
Summary:

Queries regarding the red glow seen during an eclipse of the sun.

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:
Richard Anthony Proctor
To:
Sir John Herschel
Date:
[3 February 1871]
Source of text:
RS:HS 14.130
Summary:

Raises objections to JH's theory of the solar corona. Discusses possible existence of extensive meteoric dust in the solar system. Requests permission to dedicate a book on sidereal astronomy to JH. Asks JH whether his father in later years always used a front focus for his large telescopes and whether he saw the supposed four additional Uranian satellites with his 40-foot reflector.

Contributor:
John Herschel Project