From:
James Grahame
To:
Sir John Herschel
Date:
[1 June 1818]
Source of text:
RS:HS 8.286
Summary:
JG's wife is seriously ill.
Contributor:
John Herschel Project
JG's wife is seriously ill.
Making arrangements for a visit to JH at Slough.
Depressed over wife's serious illness.
Informs JH of the place of Simon Stevin in the history of the idea of a parallelogram of forces. Has heard that JH is investigating polarized rays.