Search: Herschel, John in correspondent 
[R.S.L. Secretary?] in correspondent 
John Herschel Project in contributor 
1840-1849 in date 
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From:
Sir John Herschel
To:
[R.S.L. Secretary?]
Date:
[19 October 1843]
Source of text:
RS MC.3.306
Summary:

Relinquishes R.S.L. Donation Fund for spectrometer [see JH's 1842-6-1], because [A. C.] Becquerel's research makes it obsolete.

Contributor:
John Herschel Project