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Babbage, Charles in author 
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Herschel13647

From:
Charles Babbage
To:
Sir John Herschel
Date:
[14 February 1851]
Source of text:
TxU:H/M-0030; Reel 1062
Summary:

Sends deciphered code. Explains how CB solved it. [CB note dated 24 Mar. 1846: Technique for deciphering code.]

Contributor:
John Herschel Project

Herschel5376

From:
Charles Babbage
To:
Sir John Herschel
Date:
[29 October 1851]
Source of text:
RS:HS 2.323
Summary:

Regarding his plans for lighthouses. Had a visit from L. F. Menabrea in his absence. Who manufactures the specified telescopes?

Contributor:
John Herschel Project
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