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Haeckel, Ernst in addressee 
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From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
12 Feb [1878]
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/44 [9897])
Summary:

Thanks EH for birthday greetings.

Mentions his work on movement of plants.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
12 Feb 1879
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/46 [A 9900])
Summary:

Thanks for kind letter.

Has not yet read EH’s article in Kosmos ["Einstämmiger und vielstämmiger Ursprung", 4 (1878–9): 360–76].

Rudolf Virchow affair lamentable. Virchow’s conduct inexplicable.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
29 Apr 1879
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/47 [A 9901])
Summary:

Admires EH’s Freie Wissenschaft und freie Lehre [1878].

Virchow’s conduct is shameful.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
15 July 1879
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/48 [A 9902])
Summary:

Suggests possible visit by EH.

Comments on EH’s research.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
2 Sept 1879
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/49 [A 9903])
Summary:

Invites EH to spend night at Down.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
[4 Sept 1879]
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/49b [A 47730])
Summary:

Confirms details of EH’s visit to Down.

Contributor:
Darwin Correspondence Project