From:
Thomas Goodchild
To:
Sir John Herschel
Date:
[20 March 1860]
Source of text:
RS:HS 9.102
Summary:
Sending a descriptive pamphlet of an optical invention of his own for simple experiments with color.
Contributor:
John Herschel Project
Sending a descriptive pamphlet of an optical invention of his own for simple experiments with color.