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DCP-LETT-2032

From:
Charles Robert Darwin
To:
Henry Doubleday
Date:
[before 5 Feb 1857]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

Have all varieties been bred from the same set of eggs so that there can be no doubt they are all the same species?

Contributor:
Darwin Correspondence Project

DCP-LETT-6027

From:
Charles Robert Darwin
To:
Henry Doubleday
Date:
20 Mar [1868]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

CD asks about HD’s observation of sexual call of Coleoptera.

Also comments on statements by collectors that they breed more females than males from caterpillars. CD had thought this might be accounted for by the collection of largest and finest caterpillars, but Alexander Wallace says the collectors take large and small equally. Does HD agree with Wallace?

Contributor:
Darwin Correspondence Project
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