From:
John Ramage
To:
Sir John Herschel
Date:
[29 May 1826]
Source of text:
RS:HS 14.298
Summary:
Discusses casting and construction of telescope speculae.
Contributor:
John Herschel Project
Discusses casting and construction of telescope speculae.
Discusses construction of his 20-foot reflecting telescope, which he modeled after the 40-foot reflector at Slough. Discusses differences of gallery and asks for advice.