Search: John Herschel Project in contributor 
Pritchard, Charles in correspondent 
1860-1869 in date 
letter in document-type 
Herschel, John in correspondent 
Sorted by:

Showing 2130 of 30 items

From:
Charles Pritchard
To:
Sir John Herschel
Date:
[16 January 1864]
Source of text:
RS:HS 14.85
Summary:

Thanks JH for solar observations. Discusses 'willow leaves' observations made at Greenwich Observatory after following JH's suggestions for solar eyepiece.

Contributor:
John Herschel Project
From:
Charles Pritchard
To:
Sir John Herschel
Date:
[8 February 1864]
Source of text:
RS:HS 14.87
Summary:

Thanks JH for reading R.A.S. records. G. P. Bond will not receive R.A.S. medal. The Beaufoy Clock is recovered.

Contributor:
John Herschel Project
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 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:
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:
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
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
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
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