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DCP-LETT-7138

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
17 Mar [1870]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

CD thinks JJW’s account [in 7137] is significant for a theory of generation and should go to some scientific society; suggests additional data is needed. Quotes cases of subsequent progeny apparently affected by a previous impregnation. Perhaps not prudent to allude to "despised" Pangenesis, which CD fully believes will have its day.

Contributor:
Darwin Correspondence Project

DCP-LETT-7231

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
14 June [1870]
Source of text:
University of Redlands, Armacost Library
Summary:

Asks about birds erecting feathers when enraged or frightened. Interested in examples of expression in birds and animals.

Tells of the sheldrake dancing on tidal sands to make worms come out.

Contributor:
Darwin Correspondence Project

DCP-LETT-7253

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
29 June [1870]
Source of text:
DAR 148: 327
Summary:

On birds erecting feathers.

Comments on production of buds in Cytisus.

Discusses case of rabbit-breeding which affected subsequent progeny of female.

Contributor:
Darwin Correspondence Project
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