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Sabine, Edward in author 
1850-1859::1858::05 in date 
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From:
Edward Sabine
To:
Sir John Herschel
Date:
[8 May 1858]
Source of text:
TxU:H/M-0525.4; Reel 1093
Summary:

Current activities at magnetic observatories at Cape of Good Hope, Hobart [Tasmania], and Toronto. Future avenues for research in terrestrial magnetism include correlation with sunspot cycles, annual seasons, parallels of latitude, and lunar position. Urges establishment of many more observing stations. [JH annotation: Routing list to G. B. Airy, George Peacock, and William Whewell.]

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
15 May [1858]
Source of text:
TxU:H/M-0525.5; Reel 1093
Summary:

Forwards report, just received, of three years of lunar diurnal variation at Cape of Good Hope. [JH annotation: Routing list to G. B. Airy, George Peacock, and William Whewell.]

Contributor:
John Herschel Project
Document type
Transcription available