Search: Pritchard, Charles in correspondent 
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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
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
From:
Charles Pritchard
To:
Sir John Herschel
Date:
[27 April 1871]
Source of text:
RS:HS 14.106
Summary:

Tests several possible rules for curving lenses including W. L. Newman's and [Thomas] Cooke's. Tries to put W. L. Newman's rules for lens thickness-to-curvature ratios in a simpler equation.

Contributor:
John Herschel Project
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
From:
Charles Pritchard
To:
Margaret Brodie and John Herschel
Date:
[15 January 1852]
Source of text:
RS:HS 14.76
Summary:

Reports on progress of the three Herschel sons at Clapham. Asks JH's advice on his plan to construct a telescope. Looks forward to visit from JH.

Contributor:
John Herschel Project
From:
Charles Pritchard
To:
Sir John Herschel
Date:
[11 November 1845]
Source of text:
RAS:JH Archive 4/9.50 verso; Reel 7
Summary:

Looking forward to visit to Collingwood.

Contributor:
John Herschel Project
From:
Charles Pritchard
To:
Sir John Herschel
Date:
[20 January 1864]
Source of text:
RAS:JH Archive 15/5.2; Reel 11
Summary:

Gratitude for JH's gift of Caroline Herschel's autograph manuscripts to R.A.S.

Contributor:
John Herschel Project
From:
Charles Pritchard
To:
Sir John Herschel
Date:
[27 November 1859]
Source of text:
JHS 5.28
Summary:

Writes to JH to propose hiring JH's son Alexander for a year to work in CP's laboratory and make observations in CP's observatory.

Contributor:
John Herschel Project