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Herschel, John in correspondent 
Selwyn, William in correspondent 
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Showing 21–40 of 80 items

Herschel2621

From:
Sir John Herschel
To:
William Selwyn
Date:
[30 April 1870]
Source of text:
RS:HS 24.309
Summary:

Is returning March heliographs. Discusses the appearance of the spots. Has not received the April heliographs.

Contributor:
John Herschel Project

Herschel2622

From:
Sir John Herschel
To:
William Selwyn
Date:
[2 May 1870]
Source of text:
RS:HS 24.310
Summary:

Wants to compare Mr. Titterton's photographs of the spot groups to [Warren] de La Rue's. Has tried to determine if some localities regularly have spots.

Contributor:
John Herschel Project

Herschel2624

From:
Sir John Herschel
To:
William Selwyn
Date:
[12 May 1870]
Source of text:
RS:HS 24.313
Summary:

The research shows no particularly 'maculiferous' area on the sun, but WS may, as WS requested, present 'data' to the R.A.S. Has noticed two new spots on helioautographs on 20 and 27 April.

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

Herschel2629

From:
Sir John Herschel
To:
William Selwyn
Date:
[31 August 1870]
Source of text:
RS:HS 24.329
Summary:

Discusses the movement of the 'great group' of sunspots over the last six months. Asks WS to sign a certificate for his son [John].

Contributor:
John Herschel Project

Herschel2631

From:
Sir John Herschel
To:
William Selwyn
Date:
[4 September 1870]
Source of text:
RS:HS 24.330
Summary:

Thanks WS for August 29 photographs. Is sending JH's son's [John's] certificate. Pities the 'fallen Emperor' [Napoleon III].

Contributor:
John Herschel Project

Herschel2552

From:
William Selwyn
To:
Sir John Herschel
Date:
[10 November 1858]
Source of text:
RS:HS 15.462
Summary:

WS's brother-in-law [George Peacock] has died after an illness.

Contributor:
John Herschel Project

Herschel2553

From:
William Selwyn
To:
Sir John Herschel
Date:
[26 March 1860]
Source of text:
RS:HS 15.463
Summary:

Mentions a passage of Aristotle regarding comets. Proposes that Origen's theory of the Magi may be correct. Perhaps the Magi saw a comet.

Contributor:
John Herschel Project

Herschel2554

From:
William Selwyn
To:
Sir John Herschel
Date:
[6 December 1860]
Source of text:
RS:HS 15.464
Summary:

Sends pictures of sun. Thanks JH for sparking his interest in the sun. Wants JH to direct the B.A.A.S.'s use of the Kew telescope to take pictures.

Contributor:
John Herschel Project

Herschel2556

From:
William Selwyn
To:
Sir John Herschel
Date:
[19 March 1861]
Source of text:
RS:HS 15.465
Summary:

Discusses 'autograph of the sun' he sent earlier. Discusses measuring relative temperature of sun. Has an unpublished letter of Galileo to Cardinal Barberini regarding sunspots.

Contributor:
John Herschel Project

Herschel2557

From:
William Selwyn
To:
Sir John Herschel
Date:
[27 April 1861]
Source of text:
RS:HS 15.466
Summary:

Discusses Galileo's unpublished letter on sunspots. Outlines comparisons between tropical storms and sunspots as discussed at Cambridge Philosophical Society. Wishes to meet [Frederick] Howlett to discuss sunspots.

Contributor:
John Herschel Project

Herschel2558

From:
William Selwyn
To:
Sir John Herschel
Date:
[20 November 1861]
Source of text:
RS:HS 15.567
Summary:

Sends series of solar heliographs. If further suggestions for improvement of these are noted, please send them. Is preparing to photograph Dec. 31 eclipse.

Contributor:
John Herschel Project

Herschel2560

From:
William Selwyn
To:
Sir John Herschel
Date:
[11 January 1862]
Source of text:
RS:HS 15.468
Summary:

Discusses a depression on a heliograph, which he cannot reconcile with [Frederick] Howlett's observations. Conjectures over-exposure in printing may be the culprit.

Contributor:
John Herschel Project

Herschel2561

From:
William Selwyn
To:
Sir John Herschel
Date:
[12 August 1862]
Source of text:
RS:HS 15.469
Summary:

Sending autographs. Discusses the faculae on the eastern limb and the reception of JH's note at the R.A.S. [Frederick] Howlett is drawing a group of sunspots.

Contributor:
John Herschel Project

Herschel2562

From:
William Selwyn
To:
Sir John Herschel
Date:
[8 October 1862]
Source of text:
RS:HS 15.470
Summary:

Discusses problems with darkness on solar autographs and also the appearance of a white spot or 'ghost.' Cannot explain the 'notch' in the Aug. 4 autographs.

Contributor:
John Herschel Project

Herschel2564

From:
William Selwyn
To:
Sir John Herschel
Date:
[18 October 1862]
Source of text:
RS:HS 15.472
Summary:

Will send requested half pictures. Notes that the 'ghost' always appears in the center of the plate. Discusses position lines and notches.

Contributor:
John Herschel Project

Herschel2565

From:
William Selwyn
To:
Sir John Herschel
Date:
[26 January 1863]
Source of text:
RS:HS 15.473
Summary:

WS's photographer may get a grant from the R.S.L. Object glass for new telescope was stolen. They are still using the old one.

Contributor:
John Herschel Project

Herschel2566

From:
William Selwyn
To:
Sir John Herschel
Date:
[29 December 1864]
Source of text:
RS:HS 15.474
Summary:

Discusses translating the Iliad. Discusses Emile Gautier's theory of the maculae, which does not seem to explain what they see.

Contributor:
John Herschel Project

Herschel2568

From:
William Selwyn
To:
Sir John Herschel
Date:
[25 February 1866]
Source of text:
RS:HS 15.475
Summary:

Says William Whewell has fallen from his horse and has been injured. Thanks JH for a paper he signed for the R.S.L.

Contributor:
John Herschel Project

Herschel2570

From:
William Selwyn
To:
Sir John Herschel
Date:
[27 February 1866]
Source of text:
RS:HS 15.476
Summary:

William Whewell has gotten up to walk several times. The left side of his body and face is still 'not quite right.'

Contributor:
John Herschel Project
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