Search: Darwin, C. R. in author 
Darwin, C. R. in correspondent 
Newington, Samuel in correspondent 
1870-1879::1875::09 in date 
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From:
Charles Robert Darwin
To:
Samuel Newington
Date:
1 Sept [1875]
Source of text:
Cleveland Health Sciences Library (Robert M. Stecher collection)
Summary:

Cannot believe in possibility that the duck is a hybrid, but correlation accords with some other facts.

Requests specimens of berries and more information about the Madresfield Court vine.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Samuel Newington
Date:
17 Sept 1875
Source of text:
American Philosophical Society (Mss.B.D25.475)
Summary:

Thanks SN for his explanation of vines.

Discusses SN’s observation on roots secreting carbonic acid.

Contributor:
Darwin Correspondence Project