Search: Herschel, John in correspondent 
Cooper, Edward Joshua in correspondent 
1860-1869::1860 in date 
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Herschel6548

From:
Edward Joshua Cooper
To:
Sir John Herschel
Date:
[2 February 1860]
Source of text:
RS:HS 5.294
Summary:

Regarding modifications to the water eye piece of his telescope.

Contributor:
John Herschel Project

Herschel6549

From:
Sir John Herschel
To:
Edward Joshua Cooper
Date:
[8 February 1860]
Source of text:
RS:HS 23.296
Summary:

On the usefulness of Stephen's Writing Fluid to stop the sun's excess of light at large apertures in the telescope.

Contributor:
John Herschel Project
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