Search: Charles Darwin in collection 
1860-1869::1868::03::23 in date 
Sorted by:
Modify Search

Showing 1–5 of 5 items

DCP-LETT-6040

From:
Ernst Philipp August (Ernst) Haeckel
To:
Charles Robert Darwin
Date:
23 Mar 1868
Source of text:
DAR 166: 47
Summary:

Has received English edition of Variation. First volume of German edition came three months ago. Comments on book.

Will send copy of recent lectures on human evolution [Entstehung des Menschengeschlechts (1868)]. Gegenbaur much interested in the subject.

Considers Selachius the ancestral form of the fish and hence of all higher vertebrates. Believes their swim-bladder became lung of amphibians.

Mentions cases of hybrid crosses between rabbits and hares producing fertile offspring.

Contributor:
Darwin Correspondence Project

DCP-LETT-6041

From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
23 Mar 1868
Source of text:
DAR 84.1: 61–4
Summary:

Relates a variety of facts about sexual selection in birds. [See Descent 2: 104–5.]

Contributor:
Darwin Correspondence Project
thumbnail

DCP-LETT-6042

From:
Charles Robert Darwin
To:
William Robert Grove
Date:
23 Mar [1868]
Source of text:
Royal Institution of Great Britain (Grove Papers)
Summary:

Arranges to call on WRG.

Contributor:
Darwin Correspondence Project

DCP-LETT-6043

From:
Charles Robert Darwin
To:
Albrecht Carl Ludwig Gotthilf (Albert) Günther
Date:
23 Mar [1868]
Source of text:
Shrewsbury School, Taylor Library
Summary:

Asks AG for details of variation in patterning of the banded snake.

Contributor:
Darwin Correspondence Project

DCP-LETT-6531

From:
Albrecht Carl Ludwig Gotthilf (Albert) Günther
To:
Charles Robert Darwin
Date:
[c. 23 Mar 1868?]
Source of text:
DAR 82.2: 25
Summary:

Note on sexual differences in Monacanthus.

Contributor:
Darwin Correspondence Project
thumbnail
Author
Addressee
Correspondent
Date
Document type
Repository
Contributor
Transcription available