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Herschel, John in correspondent 
Ritchie, William in correspondent 
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From:
Sir John Herschel
To:
William Ritchie
Date:
[27 January 1825]
Source of text:
RS:HS 14.347 (C: RS:HS 20.197)
Summary:

Presented WR's paper on a new photometer to R.S.L. Discusses how objections may be avoided. Believes [John] Leslie's photometer should be thrown aside.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[30 January 1825]
Source of text:
RS:HS 14.348
Summary:

Still anxious to become a fellow of the R.S.L. Thanks JH for offer. Would like to be elected before end of present session.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[3 February 1825]
Source of text:
TxU:H/M-0449; Reel 1093
Summary:

Thanks JH for introducing WR's paper on photometer to R.S.L. council. Sends drawing of instrument and alterations to WR's paper that resulted from improvements in instrument.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[5 February 1825]
Source of text:
TxU:H/M-1212; Reel 1060
Summary:

Suggested improvements to John Leslie's photometer.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Ritchie
Date:
[19 February 1825]
Source of text:
RS:HS 20.200
Summary:

Will present alterations of WR's paper to R.S.L. [see JH's 1825-1-27]. Asks if he may describe the similarities between WR's photometer and an instrument JH used in Italy and Sicily.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[3 March 1825]
Source of text:
RS:HS 14.349
Summary:

Pleased JH liked his paper on differential photometer. Discusses apparatus for experiments on light. Describes some papers he has written and some he is writing.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[25 May 1825]
Source of text:
TxU:H/M-0450; Reel 1093
Summary:

Not upset that JH withdrew WR's paper on photometer from R.S.L. Sent similar paper to David Brewster's [Edinburgh Journal of Science] with note on JH's method for finding relative heating power of solar rays. Wants to dedicate WR's book on light and heat to JH.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[14 December 1826]
Source of text:
RS:HS 14.350
Summary:

Heard election for position in London will not take place for several weeks. If JH can secure situation in Virginia for WR, WR will accept it.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[9 January 1827]
Source of text:
RS:HS 14.351
Summary:

Thanks JH for proposing WR for R.S.L. Discusses construction of air pump. Trying to simplify construction of vacuum. Will be in London in March.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[27 February 1827]
Source of text:
RS:HS 14.352
Summary:

Requests JH make any necessary corrections in WR's paper on 'Diff[erential] Thermometer.' Thanks JH for his efforts on behalf of WR.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[28 July 1827]
Source of text:
RS:HS 14.353
Summary:

Heard JH declined mathematics professorship at London University. WR is a candidate for the position. Asks for JH's support.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[6 December 1827]
Source of text:
RS:HS 14.354
Summary:

Cannot at present accept the situation [at University of Virginia] discussed in JH's letter. Is still a candidate for position at London University [see WR's 1827-7-28]. Thanks JH for honor bestowed.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[11 January 1828]
Source of text:
RS:HS 14.355
Summary:

WR's testimonials must be sent to America before further action can be taken. Asks JH for recommendation.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[3 May 1828]
Source of text:
RS:HS 14.356
Summary:

Has not heard from [University of Virginia]. Position of lecturer in mathematics and natural philosophy has opened at Dollar Institution in Edinburgh. WR asks for recommendation for the position from JH.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[10 May 1828]
Source of text:
RS:HS 14.357
Summary:

Has not heard from America. Discusses paper on electric conduction. Wishes to move further south. Thanks JH for securing WR's election to R.S.L.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[14 June 1828]
Source of text:
RS:HS 14.358
Summary:

[Edward] Sabine's letter confirmed WR's membership in R.S.L. Feel he was ill-used by Dollar Institution. Apologizes for trouble he caused JH.

Contributor:
John Herschel Project
From:
William Ritchie
To:
Sir John Herschel
Date:
[6 April 1829]
Source of text:
RS:HS 14.359
Summary:

Will not be going to America. Will advertise for boarders to assist them in the study of mathematics and physical science. Sent paper to R.S.L.

Contributor:
John Herschel Project