Search: Herschel, John in correspondent 
Lefroy, John Henry in correspondent 
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From:
John Henry Lefroy
To:
Sir John Herschel
Date:
[27 March 1840]
Source of text:
TxU:H/M-0330; Reel 1087
Summary:

Progress in construction of observatory. Completion expected in May. Poor weather hampers actinometer observations.

Contributor:
John Herschel Project
From:
John Henry Lefroy
To:
Sir John Herschel
Date:
[20 April 1850]
Source of text:
RS:HS 11.469
Summary:

Believes that Edward Sabine has brought J. H. Lefroy's paper on the Aurora Borealis to JH's notice. Now presents another report on this subject, with comments.

Contributor:
John Herschel Project
Collection
Document type
Transcription available