From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[24 January 1850]
Source of text:
RS:HS 23.81
Summary:
About Henry Warburton's theorem, and the Gregorian calendar.
Contributor:
John Herschel Project
About Henry Warburton's theorem, and the Gregorian calendar.
Comments on calculation by Frédéric Petit of the hyperbolic orbit of the meteor of 19 Aug. 1847.
About JH's poor health; some problems in perspective. Having read a book on Egyptology, JH wanders off in flights of fanciful numerology.