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Darwin, C. R. in correspondent 
Newington, Samuel in correspondent 
Darwin, C. R. in addressee 
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From:
Samuel Newington
To:
Charles Robert Darwin
Date:
30 Aug 1875
Source of text:
DAR 172: 34
Summary:

Reports a competition between the air roots of two varieties of grapevines. The victor changed the flavour and shape of the loser’s fruit.

Contributor:
Darwin Correspondence Project
From:
Samuel Newington
To:
Charles Robert Darwin
Date:
2 Sept 1875
Source of text:
DAR 172: 35
Summary:

Tells CD of his many experiments on interarching vines, potato tubers, exudation of carbon dioxide from roots,

and the synchrony of the pulse and the step while walking.

Would like to meet CD.

Contributor:
Darwin Correspondence Project
From:
Samuel Newington
To:
Charles Robert Darwin
Date:
10 Dec 1875
Source of text:
DAR 172: 36
Summary:

Reports on various observations and experiments: a duck–fowl hybrid with queer habits,

three cases of man–dog hybrids,

his interarching vine experiments,

and orange scale.

Contributor:
Darwin Correspondence Project
From:
Samuel Newington
To:
Charles Robert Darwin
Date:
23 Nov 1880
Source of text:
DAR 172: 37
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.

Contributor:
Darwin Correspondence Project