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1840-1849::1847::03 in date 
De Morgan, Augustus in addressee 
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From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[23 March 1847]
Source of text:
RS:HS 22.312
Summary:

Thanks for AD's paper on probability of arguments and on the syllogism.

Contributor:
John Herschel Project