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Herapath, John in correspondent 
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From:
Sir John Herschel
To:
John Herapath
Date:
[17 October 1822]
Source of text:
RS:HS 19.47
Summary:

Heard of Herapath's new powerful geometry methods. No new views of differential calculus on Continent. Refers to those of William Spence annexed to JH's Mathematical Essays...(1819). Explains object of combinatory analysis, popular among Germans. Has not seen M. C. T. de Damoiseau's paper on lunar theory.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Herapath
Date:
[1 August 1825]
Source of text:
RS:HS 10.181 & 20.220
Summary:

Knows nothing of the enmity of Humphry Davy towards [John] Herapath. The purpose of JH's last letter was to point out that Herapath was in error in his solution of certain equations. Must consider correspondence closed.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Herapath
Date:
[18 October 1830]
Source of text:
RS:HS 25.1.10
Summary:

Declines an opportunity to consult [with JH?].

Contributor:
John Herschel Project
From:
John Herapath
To:
Sir John Herschel
Date:
[18 September 1848]
Source of text:
RS:HS 10.182
Summary:

Sends JH a mathematical theorem.

Contributor:
John Herschel Project
From:
John Herapath
To:
Sir John Herschel
Date:
[31 October 1848]
Source of text:
RS:HS 10.183
Summary:

On the deviation from the perpendicular of falling bodies.

Contributor:
John Herschel Project