From:
George Biddell Airy
To:
Sir John Herschel
Date:
[25 February 1839]
Source of text:
RS:HS 1.77 (C: RGO 6.368.619)
Summary:
Thomas Maclear's assistant and equipment arranged. Observations on copper horse-shoe bars applied to the end of his magnet.
Contributor:
John Herschel Project