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From:
Sir John Herschel
To:
Charles Babbage
Date:
[3 October 1817]
Source of text:
RS:HS 2.86 (C: RS:HS 20.49)
Summary:

Regarding his projected supplement. Calculus of deviations. Naming of periodical functions. [John?] Spence's manuscript.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Unidentified
Date:
[7 October 1817]
Source of text:
TxU:H/L-0638; Reel 1089
Summary:

Poses mathematical problems for 'polar equations of conic sections.'

Contributor:
John Herschel Project
From:
James Grahame
To:
Sir John Herschel
Date:
[8 October 1817]
Source of text:
RS:HS 8.283
Summary:

On horse back riding, the law, and the birth of a daughter.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Galt
Date:
[15 October 1817]
Source of text:
National Archives of Canada
Summary:

Discusses editorial actions taken by JH in editing mathematical manuscripts of William Spence, including materials recently sent to JH by JG.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[22 October 1817]
Source of text:
RS:HS 2.87
Summary:

Hopes to visit him in a few days. Regarding the calculus of derivations. Periodic functions. Is taking up mineralogy.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Wallace
Date:
22] October [1817
Source of text:
RS:HS 20.50
Summary:

Invites WW and [Thomas] Leybourn to join JH for dinner while Charles Babbage is visiting JH at Slough.

Contributor:
John Herschel Project
From:
John Galt
To:
Sir John Herschel
Date:
[23 October 1817]
Source of text:
RS:HS 8.37
Summary:

Has sent JH's continuation of William Spence's 'Outlines' to press without any alteration. Gives the scheme adopted for the makeup of the volume. Hopes JH agrees; if not write at once as he is leaving London for some time.

Contributor:
John Herschel Project
From:
William Wallace
To:
Sir John Herschel
Date:
[28 October 1817]
Source of text:
RS:HS 18.22
Summary:

Accepts invitation to visit Slough and meet Charles Babbage. [Thomas] Leybourn may accompany WW. Seeking area of conic sections.

Contributor:
John Herschel Project
From:
John Galt
To:
Sir John Herschel
Date:
[29 October 1817]
Source of text:
RS:HS 8.38
Summary:

Book will be arranged according to JH's wishes. Underwoods are to be the publishers. Is pleased JH has found signs of greatness in William Spence's works. Hopes JH will show this in his biographical introduction.

Contributor:
John Herschel Project