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Hamilton, William Rowan in correspondent 
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Herschel3859

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[18 June 1838]
Source of text:
unknown
Summary:

Pleased that the Royal Irish Academy awarded its Science Medal to James MacCullagh for his paper on the "Laws of Crystalline Reflexion and Refraction;" he deems MacCullagh's essay superior to WH's "On Algebra as the Science of Pure Time.","L

Contributor:
John Herschel Project

Herschel10798

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[19 November 1838]
Source of text:
RS:HS 10.152
Summary:

Miss Caroline Herschel has just been elected an honorary member of the Academy. How shall they forward the diploma?

Contributor:
John Herschel Project

Herschel3860

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[8 February 1839]
Source of text:
unknown
Summary:

Asks JH to keep him updated on English research of the dynamics of light. Currently considering the 'propagation' of light waves, as distinguished from their mere 'preservation'; asks whether this is a new study.

Contributor:
John Herschel Project

Herschel3861

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 February 1839]
Source of text:
unknown
Summary:

In reply to WH's 1839-2-8 inquiry, JH believes that 'Skotodynamics' (the propagation of light waves) is a new line of research. Caroline Herschel is ecstatic about her Royal Irish Academy medal.

Contributor:
John Herschel Project

Herschel3642

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[11 December 1839]
Source of text:
TCD 1493:182
Summary:

Requests another copy of WH's paper on light, recently read at Royal Irish Academy, having sent JH's own copy to Prague's [Karl] Kreil for description of [Humphrey] Lloyd's vertical magnetometer contained therein. Has WH yet found the three axes of the universe? Comments on WH's sister's 'charming' poetry.

Contributor:
John Herschel Project

Herschel3640

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[12 January 1840]
Source of text:
TCD 1493:184
Summary:

Notice on the 'final laying up' of the Old Telescope, with a 'Requiem of the Forty-Foot Reflector,' sung by JH's family on New Year's Eve.

Contributor:
John Herschel Project

Herschel3863

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[18 January 1840]
Source of text:
unknown
Summary:

Confides that the past year has been 'a sombre one ... but not unhappy.'

Contributor:
John Herschel Project

Herschel3637

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[5 March 1841]
Source of text:
TCD 1493:192
Summary:

Requests autographed copy of WH's sister's poems, wanting to send them to an acquaintance who translated some of JH's work. Expresses a theory about cause and effect. Mentions minutes of Royal Irish Academy, a reform of the constellations, and WH's three axes of the universe.

Contributor:
John Herschel Project

Herschel3862

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[19 March 1841]
Source of text:
unknown
Summary:

Considering motion as a 'successive excitement of powers.'

Contributor:
John Herschel Project

Herschel3630

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[24 March 1841]
Source of text:
TCD 1493:194
Summary:

On mode of conveyance of WH's sister's verses and the autographs for JH's acquaintance.

Contributor:
John Herschel Project

Herschel3864

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[30 December 1842]
Source of text:
unknown
Summary:

Thanks JH for JH's translation of Friederich Schiller's poem 'The Walk.'

Contributor:
John Herschel Project

Herschel3629

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[1 December 1843]
Source of text:
TCD 1493:227
Summary:

Has been delayed in congratulating WH on pension by a delightful visit from Maria Edgeworth. Praises highly verses sent by WH's sister to Lady Herschel.

Contributor:
John Herschel Project

Herschel3628

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
2] December? [1843
Source of text:
TCD 1493:1391
Summary:

Highly recommends a [William H.] Harvey (formerly Government Treasurer at the Cape) for the professorship of botany at Dublin.

Contributor:
John Herschel Project

Herschel3865

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[12 December 1843]
Source of text:
unknown
Summary:

Jokes about WH's recent 'astronomical insignificance.'

Contributor:
John Herschel Project

Herschel14742

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[27 May 1846]
Source of text:
TxU:H/M-0934; Reel 1083
Summary:

Sends copies of three letters by G. B. Airy on proposed railway through Greenwich Park. Asks JH's opinion on possible effects on observatory.

Contributor:
John Herschel Project

Herschel3339

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
1846-9-[22 or later]
Source of text:
TCD 1493:1390
Summary:

Returns two papers, which had been missent, thus preventing JH from communicating them at a meeting.

Contributor:
John Herschel Project

Herschel3234

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
19] November [1846?
Source of text:
TCD 1493:374
Summary:

WH's theorems on ellipsoids are new to JH, but JH is unfamiliar with the field, so they may not actually be new. Wishes to master mathematics. Still working on Cape observations. Believes Neptune was almost an English discovery, and would have been well-named Minerva.

Contributor:
John Herschel Project

Herschel3866

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[23 November 1846]
Source of text:
unknown
Summary:

Elated that WH's account of the generation of an ellipsoid is an original result.

Contributor:
John Herschel Project

Herschel3868

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[1 April 1847]
Source of text:
unknown
Summary:

Sends some results concerning undisturbed parabolic motion. Laments the Irish famine.

Contributor:
John Herschel Project

Herschel3294

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[20 April 1847]
Source of text:
TCD 1493:387
Summary:

On WH's 'Hodograph' and theorems of parabolic motion and the relation between velocities, initial velocities, and time. Praises WH's son. Cape Results nearly finished. Revising book on astronomy. Plans to 'attack' quaternions. Mentions parabolic functions and Benjamin Peirce's claim that the discovery of Neptune was accidental.

Contributor:
John Herschel Project
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