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From:
Charles Robert Darwin
To:
Emily Talbot
Date:
19 July 1881
Source of text:
University of Chicago Library, Special Collections Research Center (Miscellaneous Manuscript Collection)
Summary:

Interested in investigation of child development. Suggests questions. Does education of parents influence mental power of children? Desirable to test statement that coloured children at first learn as fast as white but afterwards fall behind. Does pitch of chidren’s voices vary with mood? Children’s tastes often related to occupation of progenitor. Do these last?

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Joseph Sinel
Date:
19 July 1881
Source of text:
DAR 261.11: 13 (EH 88206065)
Summary:

Thinks hairs on moles are secondary effect like hairs on ulcerated surfaces. Suggests he not publish until he has independent evidence of reversion.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Carl Gottfried Semper
Date:
19 July 1881
Source of text:
Universitäts- und Landesbibliothek Düsseldorf (slg 60/Dok/63)
Summary:

Thinks CGS right not to reply to critical article by Lankester.

Discusses direct action of environment as cause of variability; the finding of Hermann Hoffmann that direct action of environment affects plants very little.

Contributor:
Darwin Correspondence Project