From:
Sir John Herschel
To:
William Herschel
Date:
[1 December 1812]
Source of text:
TxU:H/L-0550; Reel 1053
Summary:
Two weeks of examinations begin tomorrow. Experiments writing with glass pen. Describes glassmaker's methods. Suggests application to micrometers.
Contributor:
John Herschel Project