From:
Francis Charles Knowles
To:
Sir John Herschel
Date:
[9 October 1856]
Source of text:
RS:HS 11.65
Summary:
Thinks it may be a good idea to utilize aluminium to coat the speculum of reflecting telescopes. Is shortly to take command of iron works and furnaces and hopes to carry out experiments to produce barytic glass.
Contributor:
John Herschel Project