Search: Herschel, John in addressee 
1840-1849::1847::09::16 in date 
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Herschel6534

From:
Edward Joshua Cooper
To:
Sir John Herschel
Date:
[16 September 1847]
Source of text:
RS:HS 5.286
Summary:

Encloses copies of configurations of nebulae clusters and explains his readings. Has he heard of Macedoine Melloni's water eye piece? [Andrew] Graham has invented a new micrometer.

Contributor:
John Herschel Project

Herschel5628

From:
William Radcliffe Birt
To:
Sir John Herschel
Date:
[16 September 1847]
Source of text:
RS:HS 4.118
Summary:

Informing JH that he has sent a letter to John Lee [RS:HS.4.117] and that Lee agrees with WB and wonders if it would be possible to obtain JH's support. Encloses drawings and details of Francis Ronalds's self registering barometer.

Contributor:
John Herschel Project
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