From:
John Gorham
To:
Sir John Herschel
Date:
[14 January 1868]
Source of text:
RS:HS 8.223
Summary:
Some years ago JH witnessed his experiments on the rotation of discs. Has written a paper on this subject and would be glad of his comments on whether he has chosen the right forms for the colors of the circle.
Contributor:
John Herschel Project