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Graham, Thomas in correspondent 
Herschel, John in addressee 
letter in document-type 
1840-1849 in date 
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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
From:
Thomas Graham
To:
Sir John Herschel
Date:
22 May [1845]
Source of text:
RS:HS 8.232
Summary:

Delayed answering his letter until he had carried out the observations upon pure Colophene. Gives the results of his experiments. H. E. Sainte-Claire Deville's original account is in Annales de chimie, vol. 75. Council of the R.S.L. recommended Edward Sabine to be the new Foreign Secretary.

Contributor:
John Herschel Project
From:
Thomas Graham
To:
Sir John Herschel
Date:
[12 December 1848]
Source of text:
RS:HS 8.227
Summary:

Sending a certificate for R. J. Kane and would be pleased if JH would put his name at the head of the list.

Contributor:
John Herschel Project
Document type
Transcription available