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Wheatstone, Charles in correspondent 
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From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[23 August 1825]
Source of text:
RS:HS 18.144
Summary:

Appreciates JH's interest in and encouragement of CW's experiments. Describes new experiments to elucidate theory of undulatory motion of sound and light. Invented 'kaleidophone' to display paths of vibrating rods. Hopes JH can confirm these results.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
8 January [1833]
Source of text:
Kasslers
Summary:

Postpones visit of Lady [Margaret] Herschel to CW. Wishes to take CW's Symphonion to Slough. Has made favorable mention of CW's tuning fork experiments in paper on absorption [JH's 'On the Absorption of Light by Coloured Media...'].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[21 August 1833]
Source of text:
RS:HS 21.146
Summary:

Invites CW to Slough to demonstrate CW's 'elegant experiments on light & sound.' Will need time to get JH's electric machine in order. Asks for copy of CW's paper on Jew's harp.

Contributor:
John Herschel Project
From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[23 August 1833]
Source of text:
RS:HS 18.145
Summary:

Accepts JH's invitation to demonstrate [on 28 Aug.] CW's portable optical and acoustical experiments and the 'whirling machine.' Asks JH to supply 'an electrical machine and a good sized jar.' Encloses copy of CW's paper on Jew's harp. Will bring another paper and new 'Symphonion' for Mary Herschel.

Contributor:
John Herschel Project
From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[13 May 1835]
Source of text:
RS:HS 18.146
Summary:

Returns Mary Herschel's repaired concertina. Sends CW's recent paper on velocity of electricity [R.S.P.T. 124 (1834)]. Electrical experiments CW is planning. Appointed professor of experimental philosophy at King's College.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[8 September 1835]
Source of text:
RS:HS 25.4.14 (C: RS:HS 25.11.1)
Summary:

Comments on CW's work on light and on the velocity of electricity. JH's ruminations lead him to the idea of motion pictures.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[21 December 1838]
Source of text:
RS:HS 25.11.2
Summary:

Arranges a meeting with CW and Edward Sabine to prepare a report on magnetic proposals.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[1839?]
Source of text:
RS:HS 25.11.12
Summary:

Too ill to attend a demonstration by CW of one of CW's instruments [?].

Contributor:
John Herschel Project
From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[25 February 1839]
Source of text:
RS:HS 18.147
Summary:

Invites JH to Kew Green to see Francis Bauer's plates etched by J. N. Niepce's photographic process. Perhaps L. J. M. Daguerre assumes more credit than is due. Heard Niepce visited London in 1826, but his paper was rejected by R.S.L. at W. H. Wollaston's urging.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[20 December 1840]
Source of text:
RS MM.11.152
Summary:

Discusses when and how often R.S.L. committees, particularly the physical committee, should meet.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[9 December 1841]
Source of text:
RS:HS 25.11.3
Summary:

Arranges a meeting with CW and Edward Sabine to discuss Kew [magnetic] observations.

Contributor:
John Herschel Project
From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[13 December 1841]
Source of text:
TxU:H/M-0145.1; Reel 1087
Summary:

Agrees to meet JH and Edward Sabine on Saturday. Kew Observatory was given to R.S.L., but R.S.L. has not yet taken possession of it. [JH annotation: election of General Morrison to R.S.L.]

Contributor:
John Herschel Project
From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[13 June 1842]
Source of text:
RS:HS 18.148
Summary:

Encloses B.A.A.S. statement of objectives for Richmond Observatory, for which B.A.A.S. Council asks JH to organize goals and support annual subsidy.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[17 June 1842]
Source of text:
RS:HS 18.149 (C: 22.125)
Summary:

Received prospectus of Kew observatory. Its objectives seem incompatible. It appears better suited as experimental institution. Refer Francis Beaufort to JH's 11 Oct. 1835 letter to Beaufort defining physical observatories.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[4 December 1842]
Source of text:
RS:HS 25.11.4
Summary:

Sends CW a specimen of JH's 'mercurial photographic process.' JH is pleased that W. H. Fox Talbot received the Rumford medal.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[20 March 1845]
Source of text:
RS:HS 25.11.5
Summary:

Recommends Robert Hunt to fill the professorship at King's College, left vacant by the death of John F. Daniell.

Contributor:
John Herschel Project
From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[22 March 1845]
Source of text:
RS:HS 18.150
Summary:

Agrees that vacancy in chemistry professorship left by J. F. Daniell's death at King's College should be filled by Robert Hunt, but W. A. Miller appears likely to get job.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[6 April 1845]
Source of text:
RS:HS 25.11.6
Summary:

The continuation of magnetic and meteorological observatories is under question, and CW's instrument for observing atmospheric electricity should be part of the discussion.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[15 April 1845]
Source of text:
RS:HS 25.11.7
Summary:

Makes some amendments in JH's request for information [see JH's 1845-4-6].

Contributor:
John Herschel Project
From:
Charles Wheatstone
To:
Sir John Herschel
Date:
[30 April 1846]
Source of text:
RS:HS 18.151
Summary:

Gives JH directions to Kew Observatory.

Contributor:
John Herschel Project