From:
George Biddell Airy
To:
Sir John Herschel
Date:
[22 January 1824]
Source of text:
RS:HS 1.19
Summary:
Requesting information of the dispersion of rays in Crown and Flint glass.
Contributor:
John Herschel Project
Requesting information of the dispersion of rays in Crown and Flint glass.
Concerning calculations for the parallax of Mars.
Description of theory of a telescope, though not practical yet.