Search: Herschel, John in correspondent 
Graham, Thomas in correspondent 
John Herschel Project in contributor 
1840-1849::1845::04 in date 
Sorted by:

Showing 11 of 1 item

From:
Thomas Graham
To:
Sir John Herschel
Date:
[14 April 1845]
Source of text:
TxU:H/M-0217; Reel 1087
Summary:

Sends specimen of esculine, or polychrome, extracted from horse chestnut. It exhibits optical properties that JH recently investigated. Offers to send specimen of colophene. Asks JH's recommendations for foreign secretary of R.S.L., following death of J. F. Daniell. This officer must supervise magnetic and meteorological observatories. [JH annotation: 'By all means appoint Sab(ine).']

Contributor:
John Herschel Project
Document type
Transcription available