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Herschel8720

From:
Richard Anthony Proctor
To:
Sir John Herschel
Date:
[9 August 1869]
Source of text:
RS:HS 14.113
Summary:

Elaborates on his hypothesis that all forms of nebulae are part of the Milky Way and on his 'twisted-stream theory' of the Milky Way's structure. Favors view that dark matter is relatively common in space and that it extinguishes light from distant objects. Proposes method of measuring stellar diameters.

Contributor:
John Herschel Project

Herschel8721

From:
Sir John Herschel
To:
Richard Anthony Proctor
Date:
[20 August 1869]
Source of text:
RS:HS 14.114 & RS:HS 24.277
Summary:

Discusses Olbers's Paradox, raises objections to RP's argument for the existence of dark celestial matter, and points out problems in RP's method of measuring stellar diameters.

Contributor:
John Herschel Project

Herschel8722

From:
Richard Anthony Proctor
To:
Sir John Herschel
Date:
[22 August 1869]
Source of text:
RS:HS 14.115
Summary:

Accepts JH's objection to his method of measuring stellar diameters. Quotes an argument he had published suggesting the existence of a hierarchy of systems in an infinite universe. Discusses his studies of the relation of proper motions to the sun's motion. Asks JH's permission to publish JH's idea that some nebulae may be 'miniature' of the Milky Way.

Contributor:
John Herschel Project

Herschel911

From:
Sir John Herschel
To:
Margaret Brodie Herschel
Date:
[16 August 1869]
Source of text:
JHS 5.30
Summary:

Of the fruit in the garden and the arrival of various of their daughters; JH seems to be feeling a little sorry for himself, but concludes with a riddle in French.

Contributor:
John Herschel Project

Herschel9897

From:
Thomas Graham
To:
Sir John Herschel
Date:
[19 August 1869]
Source of text:
RS:HS 8.231
Summary:

His letter has been forwarded. JH's correspondence with the Mint to which J. G. Hubbard refers has been published in the Report of the Commissioners on International Coinage 1868. Thinks expansion of mercurial amalgam is due to hydrogen. Hopes JH will accept a small medallion.

Contributor:
John Herschel Project

JHC1372

From:
Sir Joseph Dalton Hooker
To:
George Bentham
Date:
16 August 1869?
Source of text:
JDH/2/3/2 f.164, The Royal Botanic Gardens, Kew
Summary:

No summary available.

Contributor:
Hooker Project
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