From:
John Welsh
To:
Sir John Herschel
Date:
[15 July 1856]
Source of text:
RS:HS 18.139
Summary:
Describes R.S.L.'s compound magnet. Recommends cleaning and remagnetizing. Awaits JH's instructions.
Contributor:
John Herschel Project
Describes R.S.L.'s compound magnet. Recommends cleaning and remagnetizing. Awaits JH's instructions.