Search: Knowles, Francis Charles in correspondent 
1850-1859::1856::12 in date 
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Herschel11176

From:
Francis Charles Knowles
To:
Sir John Herschel
Date:
[5 December 1856]
Source of text:
RS:HS 11.66
Summary:

Has received news of a cargo of cryolite from Greenland. Outlines the various possibilities of using it for the manufacture of chemicals and glass. Sends his method of manufacturing aluminium.

Contributor:
John Herschel Project

Herschel11177

From:
Sir John Herschel
To:
Francis Charles Knowles
Date:
[6 December 1856]
Source of text:
RS:HS 11.67 & 23.184
Summary:

Would be inclined to try a combination of cryolite and silex to obtain a glass. Comments on his process for decomposing alumina by cyanide of sodium. Sorry to see that FK uses the current forms of chemical notation.

Contributor:
John Herschel Project
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