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Warburton, Henry in author 
1850-1859::1850::01 in date 
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From:
Henry Warburton
To:
Sir John Herschel
Date:
[28 January 1850]
Source of text:
RS:HS 18.52
Summary:

Thanks for citing (18 months ago) John Brinkley's paper on 'General Term.' Heard that Augustus De Morgan notified JH of deductions HW drew from Brinkley's theorems, extending them into permutations and combinations. Re-read JH's ['On the Development of Exponential Functions' (1816)]. Asks where to buy JH's Examples in Finite Differences [1820] for HW's great-nephew [Howard Elphinstone].

Contributor:
John Herschel Project
From:
Henry Warburton
To:
Sir John Herschel
Date:
[31 January 1850]
Source of text:
RS:HS 18.53
Summary:

Thanks for sending Examples in Finite Differences [1820] to WH's great-nephew Howard Elphinstone. John Brinkley's paper opened up new possibilities for permutations and combinations.

Contributor:
John Herschel Project