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From Samuel Newington   23 November 1880

Summary

He has proved that heat is generated by the exudation of oxygen from roots, and that there is continuous electrical action from leaves to roots.

Author:  Samuel Newington
Addressee:  Charles Robert Darwin
Date:  23 Nov 1880
Classmark:  DAR 172: 37
Letter no:  DCP-LETT-12846
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letter (1)
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Darwin, C. R.disabled_by_default
Newington, Samueldisabled_by_default