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Darwin, C. R. in correspondent 
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DCP-LETT-8068

From:
Charles Robert Darwin
To:
Daniel Oliver
Date:
15 Nov 1871
Source of text:
DAR 261.10: 64 (EH 88206047)
Summary:

Is it now thought that the spongioles of rootlets secrete carbonic acid which acts on bones and rocks?

Contributor:
Darwin Correspondence Project

DCP-LETT-8074F

From:
Charles Robert Darwin
To:
Daniel Oliver
Date:
17 Nov 1871
Source of text:
Christie’s, New York (dealers) (3 December 2010: Sale 2361, Lot 422)
Summary:

Thanks for the information about the action of roots on rocks.

Contributor:
Darwin Correspondence Project
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