Search: Pritchard, Charles in author 
Herschel, John in addressee 
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Herschel14185

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[10 May 1868]
Source of text:
TxU:H/M-0411; Reel 1087
Summary:

Informal request for JH to write biography of W. R. Dawes for R.A.S. Recent marriages in CP's family.

Contributor:
John Herschel Project

Herschel4071

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[15 December 1859]
Source of text:
RS:HS 14.79
Summary:

Searches for asteroids. Measures double stars and variables; Alexander Herschel assists. Asks JH's opinion of parallax measuring methods. R.S.L. funds offered to M. J. Johnson's family in his memory.

Contributor:
John Herschel Project

Herschel4087

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[6 October 1865]
Source of text:
RS:HS 14.97
Summary:

Asks if JH anticipated the results of W. L. Newman's work on lens curvature.

Contributor:
John Herschel Project

Herschel4114

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[19 February 1866]
Source of text:
RS:HS 14.98
Summary:

Informs JH, Charles Babbage, and James South that they are the surviving original members of the R.A S. Requests JH write an account of the R.A.S.'s founding. Discusses the evidence of the 'personal will' of God in creation.

Contributor:
John Herschel Project

Herschel4191

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[21 December 1864]
Source of text:
RS:HS 14.95
Summary:

Requests JH's reflections on the deceased Wilhelm Struve. Discusses making of telescope object glass. Continues work on the optical tables.

Contributor:
John Herschel Project

Herschel4197

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[1844]
Source of text:
RS:HS 14.107
Summary:

JH to visit CP's house. CP suggests they both visit J. P. Gassiot, where they might also meet with Michael Faraday. Asks JH if there are experiments he would like to see during visit. Reports observing Fraunhofer lines through a prism.

Contributor:
John Herschel Project

Herschel4212

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[19 October 1863]
Source of text:
RS:HS 14.83 Ada Pritchard, Charles Pritchard: Memoirs of His Life, 240-1
Summary:

Warren de La Rue observes 'willow leaves' [mottling on solar surface]. Diagonal solar eyepiece works with great success. Praises de La Rue's work as having astounding accuracy.

Contributor:
John Herschel Project

Herschel4229

From:
Charles Pritchard
To:
Sir John Herschel
Date:
8 July [1848]
Source of text:
unknown
Summary:

Receives object glass from Munich for double star observations.

Contributor:
John Herschel Project

Herschel4268

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[24 November 1864]
Source of text:
RS:HS 14.94
Summary:

Praises JH's Iliad. Asks R.S.L. for funds to cover expenses incurred by spherical observations. Details information to be included in optical tables.

Contributor:
John Herschel Project

Herschel4269

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[18 March 1869]
Source of text:
RS:HS 14.105
Summary:

Suggests remedy for bronchitis problem in JH family. Young John Herschel's work on nebulae pleases CP. Comments on William Huggins's work on solar spectra.

Contributor:
John Herschel Project

Herschel4270

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[1846?]
Source of text:
RS:HS 14.108
Summary:

Congratulates JH and Margaret Herschel on birth of a daughter [Francisca?]. Asks JH's opinion of the ideas of 'lines of force' and 'lateral shakes.' Conducts a force experiment with J. P. Gassiot.

Contributor:
John Herschel Project

Herschel4282

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[11 February 1865]
Source of text:
RS:HS 14.96
Summary:

R.S.L. approves of CP's optical work, believing it will be helpful at observatories abroad. CP comments on Alexander Herschel's prism experiments.

Contributor:
John Herschel Project

Herschel4370

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[17 April 1866]
Source of text:
RS:HS 14.99
Summary:

R.A.S. wants JH to direct the preparation of William Herschel's catalogue of double stars for publication. CP suggests Alexander Herschel prepare the catalogue with JH's supervision. G. B. Airy observes the 'willow leaves.'

Contributor:
John Herschel Project

Herschel4371

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[17 November 1866]
Source of text:
RS:HS 14.100
Summary:

Compares observations of meteor shower in Orion with JH. Describes methods and observations in detail.

Contributor:
John Herschel Project

Herschel4442

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[24 January 1864]
Source of text:
RS:HS 14.86
Summary:

Asks JH for information on the Beaufoy Clock owned by R.A.S., which is now missing. Requests JH to read R.A.S. Annual Report.

Contributor:
John Herschel Project

Herschel4515

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[11 March 1869]
Source of text:
RS:HS 14.104
Summary:

Has discovered William Herschel's memoirs in R.A.S. library; arranged and read them. Asks JH whether any copies exist so the originals can be checked for completion before binding. Questions JH on William Herschel's opinion of the nature of nebulae and boundaries of the galaxy.

Contributor:
John Herschel Project

Herschel4517

From:
Charles Pritchard
To:
Sir John Herschel
Date:
31 July [1860?]
Source of text:
RS:HS 14.110
Summary:

Problems making actinometer observations during solar eclipse. Reports he did not observe the supposed planet Vulcan, but a fixed star. Sends micrometer observations. Describes shape of prominences.

Contributor:
John Herschel Project

Herschel4518

From:
Charles Pritchard
To:
Sir John Herschel
Date:
n.d.
Source of text:
RS:HS 14. 111
Summary:

Experiments with lens curvature and prisms. Wants to discover set rules for lens thickness-to-curvature ratio.

Contributor:
John Herschel Project

Herschel4528

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[31 March 1864]
Source of text:
RS:HS 14.91
Summary:

Forwards letter concerning 'solar bright particles' by W. R. Dawes. Inquires if diagonal solar eyepiece used in JH's solar spectrum observations.

Contributor:
John Herschel Project

Herschel4529

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[15 December 1863]
Source of text:
RS:HS 14.84
Summary:

Describes debate at R.A.S. over the nature of the 'willow leaves.' Different parties argue that the 'leaves' are solid, precipitate, or non-luminous gas.

Contributor:
John Herschel Project
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