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1870-1879::1876::01 in date 
Haeckel, Ernst in correspondent 
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From:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
13 Jan 1876
Source of text:
DAR 166: 66
Summary:

Sends copy of Arabische Korallen [1876].

Comments on reception of his paper on "Gastrula" [see 10012].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
15 Jan [1876]
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1:1-52/ 36 [9889])
Summary:

Thanks EH for Arabische Korallen [1876].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
21 Jan [1876]
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1:1-52/ 37 [9890])
Summary:

EH’s Arabische Korallen is spirited, clear, and poetical. With respect to formation of islands, thinks EH lays too much stress on views of Ehrenberg. Admires drawings.

Contributor:
Darwin Correspondence Project
From:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
31 Jan and 1 Feb 1876
Source of text:
DAR 166: 67
Summary:

Thanks CD for comments on Arabische Korallen [1876].

Comments on Monoenia darwinii [?] as a primitive sponge.

Discusses criticisms of CD’s theory by K. E. von Baer ["Über Darwin’s Lehre", in Reden 2 (1876): 235–480].

Contributor:
Darwin Correspondence Project