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Herschel, John in correspondent 
1860-1869::1863::10::24 in date 
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From:
James Prescott Joule
To:
Sir John Herschel
Date:
[24 October 1863]
Source of text:
RS:HS 10.430
Summary:

Much obliged for his letters regarding the amalgam of iron. Cannot account for his ignorance of JH's Bakerian lecture.

Contributor:
John Herschel Project
From:
George Phillips Bond
To:
Sir John Herschel
Date:
[24 October 1863]
Source of text:
TxU:H/M-0110; Reel 1087
Summary:

Read of JH's intention to prepare general catalogue of nebulae. Encloses list of unpublished nebulae found at Harvard over past 15 years. Finds similarity in form but difference in theory between JH's equations for curve of object glasses ['On Aberrations of Compound Lenses and Object Glasses' (1821)] and those of K. A. Steinheil and C. F. Gauss. Asks about Josef Fraunhofer's theory.

Contributor:
John Herschel Project