Search: Ritchie, William in addressee 
1820-1829::1825::01 in date 
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From:
Sir John Herschel
To:
William Ritchie
Date:
[27 January 1825]
Source of text:
RS:HS 14.347 (C: RS:HS 20.197)
Summary:

Presented WR's paper on a new photometer to R.S.L. Discusses how objections may be avoided. Believes [John] Leslie's photometer should be thrown aside.

Contributor:
John Herschel Project