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Orlebar, A. B. in correspondent 
1840-1849 in date 
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From:
A. B. Orlebar
To:
Sir John Herschel
Date:
[15 January 1846]
Source of text:
RS:HS 13.181
Summary:

Circular Magnetic results. Observations of solar spots. Determining Longitude.

Contributor:
John Herschel Project
From:
A. B. Orlebar
To:
Sir John Herschel
Date:
[15 February 1846]
Source of text:
RS:HS 13.182
Summary:

Circular Magnetic and meteorological observations.

Contributor:
John Herschel Project
Document type
Transcription available