From:
Joshua King
To:
Sir John Herschel
Date:
[2 March 1825]
Source of text:
RS:HS 11.84
Summary:
Forwards a specimen of his cobalt. Gives price and the various methods of use and refining. Thinks the analysis did not show its true qualities. Would like to hear the results of JH's experiments.
Contributor:
John Herschel Project