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Darwin, C. R. in addressee 
Haeckel, Ernst in correspondent 
1860-1869::1866 in date 
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DCP-LETT-4973

From:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
11 Jan 1866
Source of text:
DAR 166: 41
Summary:

Comments on CD’s health.

Discusses origin of life and differentiation of principal classes of plants and animals.

Discusses Generelle Morphologie and its chapter on embryological development.

His lectures on CD’s theory.

Asks CD for larger portrait of himself and for several copies of the small photograph. Will send photographs of German scientists in exchange.

Contributor:
Darwin Correspondence Project

DCP-LETT-4985

From:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
28 Jan 1866
Source of text:
DAR 166: 42
Summary:

Discusses exchange of photographs with German scientists.

Comments on attitudes of German scientists toward CD’s theory.

Names several scientists who exchanged photographs: Braun, Virchow, Leydig, and Dohrn.

Contributor:
Darwin Correspondence Project

DCP-LETT-5248

From:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
19 Oct 1866
Source of text:
DAR 166: 43
Summary:

Will visit CD on Sunday, 21 October.

Will spend winter in research on Madeira and Tenerife.

CD will soon receive copy of Generelle Morphologie.

Contributor:
Darwin Correspondence Project
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