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DCP-LETT-12169

From:
Carl Hensgen
To:
Charles Robert Darwin
Date:
23 July 1879
Source of text:
DAR 166: 147
Summary:

CH, a chemist interested in zoology, asks CD’s opinion of research programme described on enclosed memorandum. Programme involves investigation of ability of molluscs to build shells out of other carbon compounds in absence of calcium carbonate.

Contributor:
Darwin Correspondence Project

DCP-LETT-12168

From:
Charles Robert Darwin
To:
George John Romanes
Date:
23 July 1879
Source of text:
American Philosophical Society (Mss.B.D25.566)
Summary:

Contributes to subscription for Grant Allen.

Regrets GJR and wife could not visit.

Encloses paper [not identified] by Thomas Meehan, a very inaccurate observer.

Contributor:
Darwin Correspondence Project
Text Online

WCP7133

From:
Alfred Russel Wallace
To:
Augustus Mongredien
Date:
23 July 1879
Source of text:
Private collection
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project
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