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Howlett, Samuel B. in correspondent 
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Herschel, John in addressee 
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From:
Samuel B. Howlett
To:
Sir John Herschel
Date:
[22 October 1838]
Source of text:
RS:HS 10.210
Summary:

Has made a barometer for his own use, which requires no correction for zero or temperature. Would like JH to see it.

Contributor:
John Herschel Project
From:
Samuel B. Howlett
To:
Sir John Herschel
Date:
[2 March 1839]
Source of text:
RS:HS 10.211
Summary:

Thanks for his letter. His barometer is not intended as a mountain one. Though a slight error does appear now and then it is no worse than other barometers, excepting that at the R.S.L. Would like JH to communicate the drawing and description to the R.S.L.

Contributor:
John Herschel Project
Document type
Transcription available