Search: Herschel, John in correspondent 
Whitworth, Joseph in correspondent 
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From:
Joseph Whitworth
To:
Sir John Herschel
Date:
[20 February 1853]
Source of text:
TxU:H/M-0581; Reel 1093
Summary:

Encloses copy of JW's letter to G. B. Airy, chair of Standards Commission, Invites JH to come and observe what JW has accomplished regarding standard measures.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Whitworth
Date:
[27 September 1862]
Source of text:
RS:HS 18.403 (C: 23:387)
Summary:

Quotes report of limitations in JW's new artillery shell for penetrating ironclad vessels. Recounts JH's [Apr. 1836] experiments at Cape of Good Hope to increase explosive power of gunpowder by adding [Luke] Howard's fulminating mercury.

Contributor:
John Herschel Project