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Herschel, John in correspondent 
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Herschel7848

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

Herschel8387

From:
William Empson
To:
Sir John Herschel
Date:
[28] January 1850
Source of text:
RS:HS 19.271
Summary:

Reports death of Francis Jeffrey. JH's letter to Jeffrey arrived too late. Mrs. Jeffrey will return to [Haileybury?] with WE.

Contributor:
John Herschel Project
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