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Herschel6290

From:
Sir John Herschel
To:
William Benson
Date:
[27 May 1869]
Source of text:
RS:HS 5.51 & 24.259
Summary:

Thanks for the gift of the paper on color. Comments on this and the subject in general.

Contributor:
John Herschel Project

DCP-LETT-6759

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
27 May [1869]
Source of text:
DAR 148: 323
Summary:

Thanks for information about bird migration.

Comments on canary hybridisation.

Contributor:
Darwin Correspondence Project
Text Online

FVM-69-05-28a

From:
Frederick McCoy
To:
Ferdinand von Mueller
Date:
28 May 1869
Source of text:
Director’s letterbooks, MVS 2/1 3, f. 313, Melbourne Museum
Summary:

No summary available.

Contributor:
Correspondence of Ferdinand von Mueller Project

Herschel2182

From:
Sir John Herschel
To:
Henry Enfield Roscoe
Date:
[28 May 1869]
Source of text:
RS:HS 24.261
Summary:

Thanks HR for sending HR's book on spectrum analysis [Spectrum Analysis, 1869]. Praises that publication.

Contributor:
John Herschel Project

Herschel3538

From:
Sir John Herschel
To:
John Tyndall
Date:
[28 May 1869]
Source of text:
RS:HS 17.406a (C: RI 559-60 & RS:HS 24:260)
Summary:

Thanks for paper on comets. Offers questions, problems to be resolved, particularly on termination of comet.

Contributor:
John Herschel Project

Herschel10685

From:
Sir John Herschel
To:
Sir William Huggins
Date:
[28 May 1869]
Source of text:
RS:HS 24.262
Summary:

About an increase in sun spot activity.

Contributor:
John Herschel Project

JHC1368

From:
Sir Joseph Dalton Hooker
To:
George Bentham
Date:
28 May 1869
Source of text:
JDH/2/3/2 f.160-161, The Royal Botanic Gardens, Kew
Summary:

No summary available.

Contributor:
Hooker Project

Herschel3347

From:
John Tyndall
To:
Sir John Herschel
Date:
[29 May 1869]
Source of text:
RS:HS 17.406b (C: RI 562)
Summary:

Thanks for JH's suggestions on JT's outline of comet speculations. [G. B.] Airy, too, has replied. Includes more speculations on 'envelopes' and nucleus of comet.

Contributor:
John Herschel Project

Herschel1934

From:
Sir John Herschel
To:
[John Tyndall]
Date:
[29 May 1869]
Source of text:
DMC 695A.885.11 (C: RS:HS 24.263 & RI 561)
Summary:

'Great Comet of 1843' presents difficulties for JT's explanation of comets' tails [continuation of JH's 1869-5-28].

Contributor:
John Herschel Project

DCP-LETT-6761

From:
Adolf Reuter
To:
Charles Robert Darwin
Date:
30 May 1869
Source of text:
DAR 176: 124
Summary:

AR, gardener to the King of Prussia, has read Variation and wishes to send CD observations.

Contributor:
Darwin Correspondence Project

Herschel166

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[30 May 1869]
Source of text:
RGO 6.257.356
Summary:

Is considering a new edition of Outlines Astr.[?] and wants to provide the latest determinations of the periods of rotation of the planets.

Contributor:
John Herschel Project

Herschel3441

From:
Sir John Herschel
To:
John Tyndall
Date:
[30 May 1869]
Source of text:
RS:HS 17.407a (C: 24.264; C: RI 563-4)
Summary:

Suggests experiments with regard to polarization and vaporization, and comets' tails.

Contributor:
John Herschel Project

Herschel4928

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[31 May 1869]
Source of text:
RS:HS 1.316 (ACCS: RGO 6.257.359)
Summary:

Gives information on the rotational periods of Mars, Jupiter, and Saturn [see JH's 1869-5-30].

Contributor:
John Herschel Project

Herschel10686

From:
Sir William Huggins
To:
Sir John Herschel
Date:
[31 May 1869]
Source of text:
RS:HS 10.50
Summary:

Has written to Lieut. John Herschel suggesting points on which solar observations might be valuable. Is pleased he has seen the bright lines. Saw some bright lines in the middle of the sun's disk.

Contributor:
John Herschel Project

Herschel6291

From:
William Benson
To:
Sir John Herschel
Date:
[31 May 1869]
Source of text:
RS:HS 5.52
Summary:

Is grateful for the paper and comments. Has referred to JH's papers many times in the lectures he has given. Hopes to produce a cheap book on color.

Contributor:
John Herschel Project
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