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Hamilton, William Rowan in correspondent 
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Herschel3867

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

Sends some new theorems concerning undisturbed parabolic motion; believes that much remains to be discovered in this field.

Contributor:
John Herschel Project

Herschel3502

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[24 August 1847]
Source of text:
TCD 1493:406
Summary:

Seeks London bookselling agent through whom to direct copies of JH's Cape Results for Dublin scientific groups. Discusses pretty names for new planets. Thanks for WH's memoir on quaternions.

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

Herschel4041

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

The equatorial on the Dublin Observatory dome needs improvement. In the last fifty-two months, WH has seen three new planets: Neptune, Iris, and Flora.

Contributor:
John Herschel Project

Herschel3293

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[6 October 1847]
Source of text:
TCD 1493:411
Summary:

Thanks WH for 'plan' of [asteroid] Iris. Family is happy to have WH's son (JH's son William's friend) with them for holidays. Recounts their playful and adventurous activities.

Contributor:
John Herschel Project

Herschel4042

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

WH notes that quaternions derive some interesting results in problems with three moving bodies.

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

Herschel3130

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[3 April 1848]
Source of text:
TCD 1493:424
Summary:

Wonderingly admires WH's quaternions. Lady Herschel has not yet thanked Eliza Hamilton (WH's sister) for the poetry because of serious illness. Except for influenza, would wish WH's son to visit for Easter. Mentions 'political extravaganzas.'

Contributor:
John Herschel Project

Herschel3503

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[14 June 1848]
Source of text:
TCD 1493:426
Summary:

Asks WH to forward Dr. [Mortimer] O'Sullivan thanks for two sermons on preparation of the world for the reception of Christianity.

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

Herschel3504

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[26 April 1850]
Source of text:
TCD 1493:478
Summary:

A Mr. Patton has applied for a position as astronomer. Is he 'conversant with practical observing'?

Contributor:
John Herschel Project

Herschel3546

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
13 [August?] 1851
Source of text:
TCD 1493:489
Summary:

Expresses deep sorrow upon hearing of death of WH's sister [Eliza Hamilton]. Is anxious to see WH's finished work on quaternions. Hopes WH has made it clear and simple.

Contributor:
John Herschel Project

Herschel3300

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[21 July 1853]
Source of text:
TCD 7762-72:257
Summary:

Eloquently, metaphorically congratulates WH on finally publishing Lectures on Quaternions.

Contributor:
John Herschel Project

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

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

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

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
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