From:
Samuel Highley
To:
Sir John Herschel
Date:
[26 August 1861]
Source of text:
RS:HS 9.313
Summary:
Believes that David Brewster's instrument for examining the lines of the spectrum was based on a formula of JH. Would be pleased if he could supply him with the details and he will then request J. H. Dallmeyer to construct one.
Contributor:
John Herschel Project