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Haeckel, Ernst in correspondent 
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From:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
9 Feb 1879
Source of text:
DAR 166: 72
Summary:

Sends birthday wishes.

Comments on progress of CD’s theory in Germany. Mentions opposition of Rudolf Virchow and his reply Freie Wissenschaft und freie Lehre [1878].

Describes research trip to Brittany and Normandy.

Research on Challenger Radiolaria.

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:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
12 July 1879
Source of text:
DAR 166: 73
Summary:

Thanks CD for comments on Freie Wissenschaft und freie Lehre [1878].

Describes work on Medusae.

Describes work on Challenger Radiolaria and publication plans.

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:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
30 Aug 1879
Source of text:
DAR 166: 75
Summary:

Accepts invitation to visit Down.

Describes travel plans in Scotland.

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:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
3 Sept 1879
Source of text:
DAR 166: 74
Summary:

Arranges to visit 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