Search: Herschel, John in correspondent 
Airy, George Biddell in correspondent 
1860-1869::1867 in date 
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From:
George Biddell Airy
To:
Sir John Herschel
Date:
[4 December 1867]
Source of text:
TxU:H/M-0643.4 (C: RGO 6.359.548)
Summary:

Thanks JH for his clear letter [see JH's 1867-12-3] about the pound weight standards.

Contributor:
John Herschel Project