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DCP-LETT-6180

From:
Edward Blyth
To:
Charles Robert Darwin
Date:
18 May 1868
Source of text:
DAR 83: 148, DAR 84.1: 107–8, 111
Summary:

Replies to CD’s queries regarding sexual differences in gibbons’ voices, chameleon behaviour, and the occurrence of spurs in pheasants and peahens. Discusses sexual differences in structure and habit within certain bird species.

Contributor:
Darwin Correspondence Project

DCP-LETT-6181

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
18 May 1868
Source of text:
DAR 84.1: 81–2, DAR 86: A37–8
Summary:

Answers CD’s question on whether any female birds regularly sing.

Contributor:
Darwin Correspondence Project

DCP-LETT-6179

From:
Asa Gray
To:
Charles Robert Darwin
Date:
18 May 1868
Source of text:
DAR 165: 163
Summary:

Has passed on copy of Variation to American Academy [of Arts and Sciences]. The U. S. reprint is not very nicely printed.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6182

From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
18 May 1868
Source of text:
DAR 166: 208
Summary:

Sends graft-hybrid notice.

Contributor:
Darwin Correspondence Project

DCP-LETT-6183

From:
Thomas Henry Farrer, 1st baronet and 1st Baron Farrer
To:
Charles Robert Darwin
Date:
18 May 1868
Source of text:
DAR 164: 41
Summary:

Is confirmed about the bending of the fly orchid pollinia. [See "Fertilisation of orchids", Collected papers 2: 141.]

Contributor:
Darwin Correspondence Project
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