Search: Airy, George Biddell in addressee 
Herschel, John in correspondent 
1860-1869::1867::12 in date 
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Herschel579

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[2 December 1867]
Source of text:
RGO 6.359.543 (C: TxU:H/L-0026)
Summary:

Is still trying to bring the various definitions of the pound into agreement [see GA's 1867-11-30]; the question of weighing in air or vacuum remains as a problem.

Contributor:
John Herschel Project

Herschel580

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[3 December 1867]
Source of text:
RGO 6.359.546 (C: TxU:H/L-0027)
Summary:

Having helped to create confusion surrounding the pound weight [see GA's 1867-12-3], JH now understands it simply and clearly; JH wonders if he is 'growing elderly.'

Contributor:
John Herschel Project
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