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Somerville, Mary in correspondent 
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From:
Sir John Herschel
To:
Mary Somerville
Date:
[1830-1?]
Source of text:
RS:HS 16.382 (C: RS:HS 25.13.29b)
Summary:

Admires her manuscript [Mechanism of the Heavens]. Wishes [P. S.] Laplace would have lived to see it. Notes a problem with the principle of virtual velocity.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[12 November 1843]
Source of text:
RS:HS 16.347
Summary:

Asks JH to tell her where to find his newly published works on the action of light on chemical substances. Rome is not intellectually stimulating. Describes summer in Venice.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[17 March 1844]
Source of text:
RS:HS 16.348 (C: RS:HS 22.148)
Summary:

Sending papers on actinochemistry (photography). Discusses [James] Forbes's viscosity theory, nebulae of Southern Hemisphere, great refractor at Collegio Romano, and Lord Rosse's telescopes.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[31 July 1844]
Source of text:
RS:HS 16.349
Summary:

Will be in London and hopes to see JH. Thanks for his letter and the promise of sending his papers on light. Also wants information on [Louis] Daguerre's work.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[16 September 1844]
Source of text:
RS:HS 16.350
Summary:

Thanks JH for papers on light and photography. Enjoyed her visit to Collingwood. Feels privileged to be godmother to JH's daughter.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[1845 ?].
Source of text:
RS:HS 16.381 (C: RS:HS 25.14.4)
Summary:

Augustus DeMorgan and [Henry Fox] Talbot are sending their papers to her. Family is well. Outlines a process of photography.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[20 September 1845]
Source of text:
RS:HS 16.351
Summary:

Discusses light experiments, which 'amused' her during summer. Has heard no scientific news lately. Describes summer in Rome.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[2 November 1845]
Source of text:
RS:HS 16.352 (C: RS:HS 22.254)
Summary:

Discusses MS's light experiments. JH will present the results to Royal Society. Describes apparatus that may help her. Recently attended a meeting concerning continental magnetics and meteorology.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[23 February 1846]
Source of text:
RS:HS 16.353
Summary:

Delighted that her paper was read at Royal Society. Discusses discovery of new planet [Neptune], and the future. Asks about his work.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[8 August 1847]
Source of text:
RS:HS 16.354 (C: RS:HS 22.324)
Summary:

Has noticed a resemblance between [Alexander von Humboldt's] Kosmos and MS's chapter, 'On Man,' in her manuscript. Advises her to revise. Sends results of observations at the Cape.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[2 March 1851]
Source of text:
RS:HS 16.356 (C: RS:HS 23.99)
Summary:

JH's new position [Master of Mint] took him by surprise. People seem 'wild' over renewed agitation of Papal aggression issue. Describes the discovery of Saturn's new ring.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[10 April 1851]
Source of text:
RS:HS 19.183
Summary:

Poem, entitled 'Intelligence,' celebrating creation of mankind.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[30 May 1853]
Source of text:
RS:HS 16.357 (C: RS:HS 23.134)
Summary:

The year has been peaceful for the Herschels and JH is doing little scientific work. Discusses the 'delusion' about 'turning tables,' which JH finds ridiculous.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[17 April 1856]
Source of text:
RS:HS 16.358
Summary:

Needs help understanding Percades [?] quantity. Inquires as to well-being of family and sends regards.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[14 April 1857]
Source of text:
RS:HS 16.359
Summary:

Thanks JH for critiquing her paper during his illness. MS's On the Connexion of the Physical Sciences is to be published in translation at Cesna.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[20 January 1858]
Source of text:
RS:HS 16.360 (C: RS:HS 23.217)
Summary:

Feeling better, but writing still painful. Writing articles on meteorology and geology for Encyclopaedia Britannica. May use information from her Physical Geography.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Somerville
Date:
[28 February 1858]
Source of text:
RS:HS 16.361 (C: RS:HS 23.224)
Summary:

Lists facts from various astronomical catalogues, such as the number of fixed, double, and binary stars. Discusses parallax. Thanks her for second edition of Physical Geography.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[15 March 1858]
Source of text:
RS:HS 16.362
Summary:

Enjoyed visit of Louisa [Herschel Marshall]. Wants copies of JH's new articles. Is witnessing a solar eclipse, in which half the disc was covered, as she writes.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[21 September 1860]
Source of text:
RS:HS 16.363
Summary:

Thanks JH for scientific papers. Is writing about relations between inorganic matter, physical and vital forces, and microscopic plants. Praises [Giuseppe] Garibaldi and his performance.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
Sir John Herschel
Date:
[28 January 1861]
Source of text:
RS:HS 16.364
Summary:

Condolences on death of JH's daughter [Margaret] Louisa.

Contributor:
John Herschel Project