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Hamilton, William Rowan in correspondent 
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Herschel3547

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[18 November 1859]
Source of text:
TCD 1493:1129 (C: TCD 1493:1130, TCD 7762-72:1460)
Summary:

Again admires WH's quaternions but begs that WH make them more accessible. Suggests book with rules clearly stated and examples relating them to ordinary problems.

Contributor:
John Herschel Project

Herschel3548

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[8 January 1860]
Source of text:
TCD 1493:1138
Summary:

Sends back manuscript of WH's [Elements of Quaternions] with comments. Says it's excellent but somewhat distracting to a beginner.

Contributor:
John Herschel Project

Herschel3549

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[25 November 1859]
Source of text:
TCD 1493:1389 (C: TCD 1493:1135, TCD 7762-72:?)
Summary:

Reports favorably on sections of WH's book [Elements of Quaternions] that JH read. Predicts its importance and wide circulation. Is too busy to read more now.

Contributor:
John Herschel Project

Herschel3550

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[1 March 1860]
Source of text:
TCD 1493:1144 (C: TCD 1493:1145)
Summary:

Apologizes for not returning sheets of Elements of Quaternions sooner, but was ill. Again cautions WH that method might be too advanced for elementary readers.

Contributor:
John Herschel Project

Herschel3556

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[29 December 1830]
Source of text:
TCD 1493:68
Summary:

Regrets lack of time for WH's paper but has been occupied with nebulae and double stars. Finds it difficult to concentrate on one subject. Has proposed Edward Quin for Astronomical Society membership. Mentions [Francis] Beaufort's penchant for astronomy and the recent R.S.L. elections, as well as JH's wish to meet WH personally.

Contributor:
John Herschel Project

Herschel3583

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[25 May 1828]
Source of text:
TCD 1493:20
Summary:

Thanks for remainder of WH's essay on 'Systems of Rays.' Recalls error-ridden copy of JH's Light given to WH; sends correction. Wishes to propose WH for membership in Astronomical Society.

Contributor:
John Herschel Project

Herschel3584

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 January 1829]
Source of text:
TCD 1493:34
Summary:

Was pleased to recently admit Capt. [Francis] Beaufort as WH's proxy in Astronomical Society.

Contributor:
John Herschel Project

Herschel3585

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 June 1835]
Source of text:
TCD 1493:109
Summary:

Gives incomplete report on observations of nebulae and double stars and theories on the Milky Way and Magellanic Clouds based thereupon. Thanks WH for his explanation of WH's new dynamical method, but JH admits that he understands only its 'general scope.'

Contributor:
John Herschel Project

Herschel3586

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 February 1836]
Source of text:
TCD 1493:176
Summary:

Replies to WH's letter on 'Scotodynamics.' Cannot follow WH's analysis of velocities of vibrations and disturbances, but finds it symbolically beautiful and powerful. Notes that diploma [?] arrived and was sent to Hanover. Thanks WH on behalf of Caroline Herschel, who sent a letter acknowledging the honor bestowed on her by Royal Irish Academy.

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

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

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

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

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

Herschel3641

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[27 October 1848]
Source of text:
TCD 1493:472
Summary:

Is glad that WH is trying in his Lectures on Quaternions to clarify principles of quaternions. Suggests that WH define highly abstract terms.

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

Herschel3835

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

Wants WH's quaternion mathematics to be challenged; also worries that quaternions will become merely 'a private and personal skill' instead of a method that can be taught.

Contributor:
John Herschel Project

Herschel3836

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

Describes the funeral of James MacCullagh; mystified why he committed suicide.

Contributor:
John Herschel Project

Herschel3852

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[5 December 1827]
Source of text:
unknown
Summary:

Thrilled by JH's encouragement concerning WH's 'Theory of Systems of Rays.' Enthusiastic about his career prospects at the University of Dublin.

Contributor:
John Herschel Project

Herschel3853

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[12 October 1827]
Source of text:
unknown
Summary:

Sorry that he could not meet JH when JH was in Dublin; hopes to be introduced to JH soon. Answers JH's queries about WH's work; explains that he is studying 'the general properties of systems of rays, and of the surfaces with which they are connected.'

Contributor:
John Herschel Project
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