From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
6 Sept [1857]
Source of text:
DAR 114: 209
Summary:
Some negative results in variety tabulation survey.
Galls on wild carrot.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[before 11 Sept 1857]
Source of text:
DAR 210.6: 17
Summary:
Writes of the extension to Down House.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
11 Sept [1857]
Source of text:
DAR 114: 211; DAR 115: 73a
Summary:
Representative species may complicate tabulation of varieties.
Questions for Mr Anderson about horse colouring in Norway.
Has been writing an "audacious little discussion" to show that "organic beings are not perfect, only perfect enough to struggle with their competitors".
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Stevens Henslow
Date:
25 Sept [1857]
Source of text:
DAR 93: A58–9
Summary:
Thanks JSH for his magnificent present. Hopes Hooker will bring the specimens.
Have water-fowl ever been seen at Ipswich on Mr Ransome’s great tank?
Contributor:
Darwin Correspondence Project
From:
Robert Schlagintweit
To:
Charles Robert Darwin
Date:
25 Sept 1857
Source of text:
DAR 177: 52 (fragile)
Summary:
Gives CD further details of the fertility of the offspring from cross of a yak and Indian cow, the so-called chooboos, whose fertility he has traced to the seventh generation [see Natural selection, pp. 437–8].
Contributor:
Darwin Correspondence Project
From:
Alfred Russel Wallace
To:
Charles Robert Darwin
Date:
[27 Sept 1857]
Source of text:
DAR 47: 145
Summary:
Refers to CD’s letter of "May last". ARW’s views on order of succession of species are in accordance with CD’s.
Disappointed that his paper ["On the law which has regulated the introduction of new species", Ann. & Mag. Nat. Hist. 2d ser. 16 (1855): 184–96] elicited no discussion; now ARW is trying to prove it. Paper merely states the theory.
On black jaguars breeding inter se: ARW has never heard of a parti-coloured one.
Contributor:
Darwin Correspondence Project
From:
Hensleigh Wedgwood
To:
Charles Robert Darwin
Date:
[before 29 Sept 1857]
Source of text:
DAR 48: A80–1
Summary:
Suggests CD use the common origin of the French "chef" and the English "head" or "évêque" and "bishop" to illustrate the parallels between extinction and transitional forms in language and palaeontology [see Natural selection, p. 384].
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
30 Sept [1857]
Source of text:
DAR 114: 210
Summary:
C. F. Ledebour [Flora rossica (1842–53)] particularly useful for variety tabulation. Results generally favourable.
Additions to Down House.
Last two chapters of MS took six months to write.
Contributor:
Darwin Correspondence Project
