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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-9962

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
1 May 1875
Source of text:
American Philosophical Society (Mss.B.D25.468)
Summary:

August Weismann is interested in JJW’s experiments on birds and the caterpillars they eat.

Contributor:
Darwin Correspondence Project

DCP-LETT-10056

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
10 July 1875
Source of text:
American Philosophical Society (Mss.B.D25.466); DAR 148: 336
Summary:

Regarding Cytisus graft with yellow flowers, CD thinks nurseryman has sold Cytisus adami to JJW’s brother in place of C. purpureus. This explains apparent "sport". [P.S. on envelope:] C. purpureus seeds freely. C. adami never does.

Contributor:
Darwin Correspondence Project
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