Search: Herschel, John in correspondent 
Challis, James in correspondent 
1860-1869 in date 
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From:
James Challis
To:
Sir John Herschel
Date:
[10 July 1861]
Source of text:
RS:HS 5.237
Summary:

Encloses sketch of the comet seen on night of 30 June. Comments on various aspects of the comet.

Contributor:
John Herschel Project
From:
James Challis
To:
Sir John Herschel
Date:
[23 December 1862]
Source of text:
RS:HS 5.238
Summary:

Has read JH's brochure with pleasure. Regarding the alleged obstruseness of some of his own mathematical theories.

Contributor:
John Herschel Project
From:
James Challis
To:
Sir John Herschel
Date:
[4 January 1865]
Source of text:
RS:HS 5.239
Summary:

Thanks for his friendly letter written on Christmas day. Regarding the Cambridge Observations just published. His own theories of hydrodynamics.

Contributor:
John Herschel Project
From:
James Challis
To:
Sir John Herschel
Date:
[29 January 1866]
Source of text:
RS:HS 5.240
Summary:

Sending a certificate proposing Professor William Selwyn; would JH add qualifications, sign it and send it on to G. B. Airy.

Contributor:
John Herschel Project
From:
James Challis
To:
Sir John Herschel
Date:
[28 November 1866]
Source of text:
RS:HS 5.241
Summary:

Would be grateful if JH would add his name to the enclosed certificate for Edward Walker. Large number of readings of meteors taken at Cambridge Observatory. Comments on these observations.

Contributor:
John Herschel Project
From:
James Challis
To:
Sir John Herschel
Date:
[1 April 1869]
Source of text:
RS:HS 5.242
Summary:

Is pleased with the interest JH is taking in his volume. Understands the difficulty of comprehending it at once. Further comments on his own dynamical theory of dispersion.

Contributor:
John Herschel Project