From:
John Henry Dallmeyer
To:
Sir John Herschel
Date:
[21 February 1867]
Source of text:
RS:HS 6.7
Summary:
Thanks for letter and details of his paper in the R.S.P.T. Wishes there was an index of authors and subjects for students. Theories regarding the action of light on glass. Has interested Messrs. Chance in his theories. Gives reasons why he wants a reading glass of 3 1/2 inches.
Contributor:
John Herschel Project