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Pritchard, Charles in correspondent 
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Herschel4530

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[20 February 1864]
Source of text:
RS:HS 14.88
Summary:

Richard Hodgson claims to have invented the diagonal solar eyepiece despite JH's description of it in Cape Results.

Contributor:
John Herschel Project

Herschel4545

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[21 February 1864]
Source of text:
RS:HS 14.89
Summary:

Richard Hodgson pursues claim to invention of the diagonal solar eyepiece while claiming that JH disclaimed the invention.

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

Herschel4538

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[9 November 1864]
Source of text:
RS:HS 14.92
Summary:

Compares W. L. Newman's and CP's calculations of optical coefficients to those in JH's work. Sends JH formulae and tables for calculating telescopic lens thickness and shape in relation to the dimensions of the telescope. Wishes JH luck on Iliad.

Contributor:
John Herschel Project

Herschel4546

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[10 November 1864]
Source of text:
RS:HS 14.93
Summary:

Compares JH's equation for lens curvature with that of C. F. Gauss.

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

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

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

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

Herschel4457

From:
Sir John Herschel
To:
Charles Pritchard
Date:
1866
Source of text:
RS:HS 14.101 (C: RS:HS 24.182)
Summary:

Discusses opinions of Charles Darwin's theories. Doubtful that the day has shortened due to tidal forces since the earth's beginning. Alexander Herschel helps in the revision of William Herschel's double star catalogue. Alex is preparing to lecture at Glasgow University.

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

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

Herschel3038

From:
Sir John Herschel
To:
Charles Pritchard
Date:
[23 April 1866]
Source of text:
unknown
Summary:

Thanks CP and R.A.S. Council for funds to help with JH's catalogue of William Herschel's double stars. Alexander Herschel will begin work soon on the project.

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

Herschel4548

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[27 March 1867]
Source of text:
RS:HS 14.102
Summary:

Asks if JH still considering editing William Herschel's R.S.P.T. publications. Suggests that Alexander Herschel edit the work. Speculates that William Herschel observed the 'willow leaves.' JH's star catalogue will be printed by the R.A.S.

Contributor:
John Herschel Project

Herschel12906

From:
Sir John Herschel
To:
Charles Pritchard
Date:
[10 April 1867]
Source of text:
TxU:H/L-0319; Reel 1054 (Cdraft: RS:HS 25.15.24)
Summary:

JH is busy correcting first proofs of pages on double stars. Thanks for binding JH's star [allineations?]. CP's suggestion [see CP's 1867-3-27] to JH's son Alexander, to collect and edit William Herschel's papers, entails too much work for one editor. JH dreads thought of such work. Doubts CP's claim that WH observed fixed star in Corona.

Contributor:
John Herschel Project

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

Herschel4115

From:
Sir John Herschel
To:
Charles Pritchard
Date:
[3 November 1868]
Source of text:
RS:HS 14.103
Summary:

Solar spectrum observations of John Herschel (son of JH) may have produced detection of the photosphere and corona at a time other than a total solar eclipse.

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

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
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