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DCP-LETT-672F

From:
Charles Robert Darwin
To:
William Kemp
Date:
24 [Apr 1843]
Source of text:
Cambridge University Library (MS Add. 10252/15) (gift of Ruth Cramond and David Cramond)
Summary:

Has not yet heard from R. Brown, but John Lindley thinks species will probably turn out to be common ones.

Contributor:
Darwin Correspondence Project

Herschel7357

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
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