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Roget, Peter Mark in correspondent 
John Herschel Project in contributor 
1840-1849 in date 
Herschel, John in author 
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From:
Sir John Herschel
To:
Peter Mark Roget
Date:
[23 February 1841]
Source of text:
Lion Heart Autographs
Summary:

Notes interest expressed by Macedonio Melloni in meteorological observations. Urges that R.S.L. Council give its attention to the mass of meteorological observations that have accumulated.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Peter Mark Roget
Date:
[14 October 1843]
Source of text:
TxU:H/L-0340; Reel 1054
Summary:

Construction of JH's new instrument for photographing spectral lines is still incomplete, and A. E. Becquerel has already announced discovery. JH will return £100 granted to JH by R.S.L.

Contributor:
John Herschel Project
Document type
Transcription available