Search: Herschel, John in correspondent 
1840-1849::1842::12::23 in date 
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Herschel13815

From:
George Dollond
To:
Sir John Herschel
Date:
[23 December 1842]
Source of text:
TxU:H/M-0165; Reel 1087
Summary:

Sees too many difficulties in optics of JH's proposed telescope. Can build mechanical portion, but not by March as JH requires. Cannot give estimate, because design is too novel.

Contributor:
John Herschel Project

Herschel8653

From:
Sir John Herschel
To:
[John Frederick Goddard?]
Date:
[23 December 1842]
Source of text:
Manchester Central Library
Summary:

JH mislaid the request for specimens of photography, but now sends them; describes those sent. Explains how to get a copy of JH's paper on photography.

Contributor:
John Herschel Project
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