Search: Herschel, John in correspondent 
Joule, James Prescott in correspondent 
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Herschel, John in addressee 
John Herschel Project in contributor 
1840-1849 in date 
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From:
James Prescott Joule
To:
Sir John Herschel
Date:
[24 April 1843]
Source of text:
RAS:JH Archive 3/7.13; Reel 7
Summary:

Refers JH to page 18 of memoir of Manchester Literary and Philosophical Society, in which JJ, using 'the magnetic electrical machine,' succeeded in proving 'that heat may be generated by mechanical power without accompanying chemical change.'

Contributor:
John Herschel Project
From:
James Prescott Joule
To:
Sir John Herschel
Date:
[29 October 1846]
Source of text:
RS:HS 10.428
Summary:

Has been carrying out a series of experiments with spiders immersed in acids and finds their bodies are not protected in any way. Has also been experimenting with elastic tissues to see if there is a change of temperature.

Contributor:
John Herschel Project