From:
Sir John Herschel
To:
Jacques Babinet
Date:
[4 February 1862]
Source of text:
RS:HS 19.147
Summary:
Notes ingenuity of JB's gravimetric balance. Astonished that it did not occur to anyone before. [Letter continues 5 Feb.:] Suggestion for improving torsion thread arrangement.
Contributor:
John Herschel Project