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Showing 1–20 of 27 items

Herschel10862

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

Herschel10809

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

Herschel8741

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

Herschel8742

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

Herschel4961

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

Herschel8743

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

Herschel8744

From:
Richard Anthony Proctor
To:
Sir John Herschel
Date:
[8 February 1871]
Source of text:
RS:HS 14.131
Summary:

Discusses JH's response to his comments on JH's theory of the solar corona. Discusses great difficulty of writing his planned book on sidereal astronomy.

Contributor:
John Herschel Project

Herschel10522

From:
John R. Hind
To:
Sir John Herschel
Date:
[9 February 1871]
Source of text:
RS:HS 9.399
Summary:

Forgot to call his attention to the column regarding the Julian period in the Nautical Almanac. Something strange about the neighborhood of R. Leporis. He has no doubt seen the table of Julian dates in the Connaissance des temps.

Contributor:
John Herschel Project

Herschel6651

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

Herschel6868

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

Herschel4962

From:
Thomas Andrews
To:
Sir John Herschel
Date:
[11 February 1871]
Source of text:
RS:HS 1.348
Summary:

Has notified J. C. Poggendorf of JH's notes on calorimeters. Discussion of Michael Faraday's indebtedness to JH's Prelim. Discourse.

Contributor:
John Herschel Project

Herschel9720

From:
John P. Gassiot
To:
Sir John Herschel
Date:
[13 February 1871]
Source of text:
RS:HS 8.67
Summary:

B.A.A.S. has announced its intention of giving up Kew Observatory. What does he think of the possibility of the R.S.L. taking it over for Magnetic Observations? Sends a copy of the Kew report, also a copy of a letter from [Balfour] Stewart.

Contributor:
John Herschel Project

Herschel7904

From:
George Robert Waterhouse
To:
Sir John Herschel
Date:
[15 February 1871]
Source of text:
RS:HS 18.108
Summary:

Turned JH's mineral specimen over to N. S. Maskelyne. Poor health of GW's wife.

Contributor:
John Herschel Project

Herschel6869

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[15 February 1871]
Source of text:
RS:HS 6.173
Summary:

Is glad he is pleased with the work of Balfour Stewart and himself. Has applied to R.S.L. for a further grant to carry on the observations and computations for another year. Intends to finance the last year himself. Since the death of his brother he has returned to business.

Contributor:
John Herschel Project

Herschel12166

From:
Nevil Story-Maskelyne
To:
Sir John Herschel
Date:
[16 February 1871]
Source of text:
RS:HS 13.24
Summary:

His colleague, [G. R.] Waterhouse, has passed an inquiry from JH to NM regarding a mineralogical character. It is a specimen of Obsidian, very high in iron content.

Contributor:
John Herschel Project

Herschel9721

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

Herschel5832

From:
Alfred Brothers
To:
Sir John Herschel
Date:
[18 February 1871]
Source of text:
RS:HS 4.301
Summary:

Encloses photographs taken of the last eclipse. Draws his attention to certain aspects of the eclipse.

Contributor:
John Herschel Project

Herschel8130

From:
George Mathews Whipple
To:
Sir John Herschel
Date:
[18 February 1871]
Source of text:
RS:HS 18.396
Summary:

Sends prints of solar photographs taken last week at Kew, as requested by Warren de La Rue. Regrets that picture on 11 Feb. was unsatisfactory.

Contributor:
John Herschel Project

Herschel918

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

Herschel5833

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
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