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Darwin, C. R. in correspondent 
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DCP-LETT-7921

From:
Charles Robert Darwin
To:
George Busk
Date:
2 Sept [1871]
Source of text:
DAR 96: 88
Summary:

Is preparing a new edition of Origin [6th ed. (1872)] and asks GB for information on the gradations between the vibracula and avicularia of the Polyzoa and on what he bases his opinion concerning the homology of the avicularium with the zooid.

Contributor:
Darwin Correspondence Project
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DCP-LETT-7930

From:
George Busk
To:
Charles Robert Darwin
Date:
10 Sept 1871
Source of text:
DAR 160: 383
Summary:

Replies to CD’s queries about the homologies of the avicularian and vibracular organs of Polyzoa and gives examples of gradations between the two.

Contributor:
Darwin Correspondence Project
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DCP-LETT-7937

From:
Charles Robert Darwin
To:
George Busk
Date:
13 Sept [1871]
Source of text:
Smithsonian Libraries and Archives (Dibner Library of the History of Science and Technology MSS 405 A. Gift of the Burndy Library)
Summary:

CD plans to use notes provided by GB. [See Origin, 6th ed., p. 193.]

Contributor:
Darwin Correspondence Project
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