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Babbage, Charles in correspondent 
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Herschel5393

From:
Charles Babbage
To:
Sir John Herschel
Date:
[1819?]
Source of text:
RS:HS 2.340
Summary:

Would he like to come for a trip down the river to see W. E. Parry's Expedition ships? Query regarding quartz crystals. Date for Pearsonian dinner.

Contributor:
John Herschel Project

Herschel5415

From:
Sir John Herschel
To:
Charles Babbage
Date:
[1819?]
Source of text:
RS:HS 2.362 (C: RS:HS 20.67)
Summary:

Cannot accompany CB to Deptford because JH busy with James South. Mentions the 'Pearsonian dinner,' 'plagi[h]edral' crystals, and a letter by Wilhelm Olbers.

Contributor:
John Herschel Project

Herschel5158

From:
Charles Babbage
To:
Sir John Herschel
Date:
[7 January 1819]
Source of text:
RS:HS 2.108
Summary:

Gives equation. Is arranging the visit to Paris.

Contributor:
John Herschel Project

Herschel5159

From:
Sir John Herschel
To:
Charles Babbage
Date:
[17 February 1819]
Source of text:
RS:HS 2.109 (C: RS:HS 20.65)
Summary:

Would he please forward the letters and papers which he left behind.

Contributor:
John Herschel Project

Herschel5161

From:
Charles Babbage
To:
Sir John Herschel
Date:
[19 February 1819]
Source of text:
RS:HS 2.111
Summary:

Relates the details of his accident. Gives equations and theorems.

Contributor:
John Herschel Project

Herschel5160

From:
Sir John Herschel
To:
Charles Babbage
Date:
[19 February 1819]
Source of text:
RS:HS 2.110 (C: RS:HS 20.66)
Summary:

Is anxious to hear how his wounds are progressing. Will not be able to come to town yet owing to various circumstances. New chemical experiments.

Contributor:
John Herschel Project

Herschel5164

From:
Charles Babbage
To:
Sir John Herschel
Date:
[6 March 1819]
Source of text:
RS:HS 2.114
Summary:

Has dispatched the tourmaline. His chemical experiments. Circulating functions solving chance problems. [Letter postmarked 1819-3-29.]

Contributor:
John Herschel Project

Herschel5162

From:
Charles Babbage
To:
Sir John Herschel
Date:
[21 March 1819]
Source of text:
RS:HS 2.112
Summary:

Has had some more tourmaline sent. Gives some more equations. Chemical experiments.

Contributor:
John Herschel Project

Herschel12630

From:
Sir John Herschel
To:
Charles Babbage
Date:
[25 March 1819]
Source of text:
TxU:H/L-0051.4; Reel 1054
Summary:

Made apparatus for showing rings between 'two Tourmalines.' JH's process for making hyposulfurous acid. Praises W. H. Wollaston's analysis of CB's 'Tonquinate.'

Contributor:
John Herschel Project

Herschel5163

From:
Sir John Herschel
To:
Charles Babbage
Date:
[25 March 1819]
Source of text:
RS:HS 2.113 (C: RS:HS 20.68)
Summary:

Regarding the disposal of the tourmaline. Address of his cousin. Drawing and description of the apparatus for experiments on tourmaline. Chemical experiments.

Contributor:
John Herschel Project

Herschel5165

From:
Charles Babbage
To:
Sir John Herschel
Date:
[14 April 1819]
Source of text:
RS:HS 2.115
Summary:

Has received papers from J. B. Biot. Has been to the Customs and Excise. Functional equations.

Contributor:
John Herschel Project

Herschel5166

From:
Sir John Herschel
To:
Charles Babbage
Date:
[8 May 1819]
Source of text:
RS:HS 2.116 (C: RS:HS 20.69 & C inc: TxU:H/L-0051.5; Reel 1054)
Summary:

Answers CB's question on the equation. Hopes to see him in London shortly. Chemical experiments.

Contributor:
John Herschel Project

Herschel12631

From:
Sir John Herschel
To:
Charles Babbage
Date:
1819-7
Source of text:
TxU:H/L-0051.6; Reel 1054
Summary:

Sent JH's paper on mother-of-pearl and paper on hyposulfurous acid to David Brewster. Tell Brewster of JH's discovery of optical structure in crystals of bicarbonate of potash. Would Brewster accept paper from JH enlarging the definition of crystals?

Contributor:
John Herschel Project

Herschel5169

From:
Sir John Herschel
To:
Charles Babbage
Date:
1819-7
Source of text:
RS:HS 2.119 (C: RS:HS 20.72)
Summary:

Wishing CB success in his efforts to obtain the position of professor at Edinburgh. Relates details of his recent experiments with bicarbonate of potash.

Contributor:
John Herschel Project

Herschel5167

From:
Charles Babbage
To:
Sir John Herschel
Date:
[24 July 1819]
Source of text:
RS:HS 2.117
Summary:

Has just returned from Lincolnshire. Will shortly be visiting Torquay. Would like to call on him if convenient. Has heard of a vacant professorship at Edinburgh University and may try for it. Gives an equation of W. H. Wollaston's.

Contributor:
John Herschel Project

Herschel5168

From:
Charles Babbage
To:
Sir John Herschel
Date:
[25 July 1819]
Source of text:
RS:HS 2.118
Summary:

Is going to Edinburgh to apply for the post left vacant by John Playfair's death. Would JH and his father give him certificates and references? [Note by Mrs. CB to the effect that her husband has heard that James Ivory will not be contesting the professorship at Edinburgh].

Contributor:
John Herschel Project

Herschel1547

From:
Sir John Herschel
To:
Charles Babbage
Date:
[27 July 1819]
Source of text:
BL Aaa 32292.123
Summary:

JH understands CB to be a candidate for a professorial chair, and JH writes a warm letter of support.

Contributor:
John Herschel Project

Herschel5170

From:
Charles Babbage
To:
Sir John Herschel
Date:
[8 August 1819]
Source of text:
RS:HS 2.120
Summary:

Apologizes for the long delay in answering his letter. Relates experiences and hopes of success in his effort to obtain the position of professor at the University.

Contributor:
John Herschel Project

Herschel5171

From:
Sir John Herschel
To:
Charles Babbage
Date:
1819-[9]
Source of text:
RS:HS 2.121 (C: RS:HS 20.73)
Summary:

Sorry to hear of his failure at Edinburgh. Inviting him to Slough. Enquiring about the people CB met at Edinburgh.

Contributor:
John Herschel Project

Herschel5172

From:
Charles Babbage
To:
Sir John Herschel
Date:
[13 October 1819]
Source of text:
RS:HS 2.122
Summary:

Has just returned from Edinburgh and found JH's letter awaiting him. Relates various experiences in Edinburgh. Recent discoveries in his chemical experiments.

Contributor:
John Herschel Project
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