From:
John Edward Gray
To:
Charles Robert Darwin
Date:
[1846–54]
Source of text:
DAR 205.5: 216 (Letters)
Summary:
Lateral teeth in Arcadae.
Contributor:
Darwin Correspondence Project
From:
Roderick Impey Murchison, 1st baronet
To:
Charles Robert Darwin
Date:
[1846?]
Source of text:
DAR 171: 319
Summary:
Gives CD page references [in The new statistical account of Scotland, vol. 14, pp 446, 507] for information regarding parallel roads.
Contributor:
Darwin Correspondence Project
From:
George Brettingham Sowerby
To:
Charles Robert Darwin
Date:
[1846]
Source of text:
DAR 43.1: 5
Summary:
Note on editorial details concerning names of fossil shells [for South America, appendix]. The Latin for "Darwin" is "Darvinius".
Contributor:
Darwin Correspondence Project
From:
George Brettingham Sowerby
To:
Charles Robert Darwin
Date:
17 Jan 1846
Source of text:
DAR 43.1: 1c–2
Summary:
Describes his reasoning in classifying CD’s Turritella ambulacrum specimens into two sorts. GBS holds that distinguishing characters, whether of species or varieties, should always be noticed. [See South America, appendix, pl. III, fig. 49.]
Contributor:
Darwin Correspondence Project
From:
Alcide Charles Victor Dessalines (Alcide) d’Orbigny
To:
Charles Robert Darwin
Date:
31 Jan 1846
Source of text:
DAR 39.2: 128–9, DAR 43.1: 66–7
Summary:
Sends identifications of CD’s Bahia Blanca fossil shells [see 830].
Contributor:
Darwin Correspondence Project
From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
1 Feb 1846
Source of text:
DAR 100: 60–2
Summary:
Goes on the assumption that each species has one origin, is immutable, and migrates.
Disagrees with Gaudichaud[-Beaupré] that volcanic island species are polymorphous.
Some mundane genera vary, others do not (Senecio vs Gnaphalium).
John Lindley’s doctrine of longevity of trees is amazing.
Edward Forbes’s health is better.
Contributor:
Darwin Correspondence Project
From:
George Brettingham Sowerby
To:
Charles Robert Darwin
Date:
7 Feb 1846
Source of text:
DAR 43.1: 3–4
Summary:
Gives his opinion on the tropical character of fossil shells listed by CD. The shells of Navidad [Chile] are not particularly tropical.
Contributor:
Darwin Correspondence Project
From:
Edward Forbes
To:
Charles Robert Darwin
Date:
[25 Feb 1846]
Source of text:
DAR 164: 151
Summary:
Answers CD’s objections with botanical and geological arguments supporting the existence of an ancient post-Miocene land extending over what is now the Mediterranean and past the Azores in the Atlantic [EF’s "Atlantis" theory in "On the connexion between the distribution of the existing fauna and flora of the British Isles and the geological changes which have affected their area", Mem. Geol. Surv. G. B. 1 (1846): 336–432].
Contributor:
Darwin Correspondence Project
From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
2 [Mar] 1846
Source of text:
DAR 100: 63–8
Summary:
Thanks for Edward Forbes’s letter. Botanical evidence conflicts with parts of his theory but supports others. Is becoming more of a migrationist.
Bentham agrees with JDH on polymorphism.
Contributor:
Darwin Correspondence Project
From:
Christian Gottfried Ehrenberg
To:
Charles Robert Darwin
Date:
11 Mar 1846
Source of text:
DAR 39: 62–3
Summary:
Describes Infusoria in Rio Gallegos samples.
"Fluthgebiete" means estuary deposit.
Discusses dust samples from Malta. Asks for further samples.
Contributor:
Darwin Correspondence Project
From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[25 Mar 1846]
Source of text:
DAR 104: 188–91
Summary:
JDH recognises the existence of "altered states" of continental species in island floras. The botanists’ difficulty in determining a new species is no grounds for dismissing the important question of altered forms.
Will look for Ascension plants for Ehrenberg.
French Galapagos collections confirm JDH’s view that plants arrived from north.
Cannot agree with Forbes on North Atlantic flora.
Botanical definition of "highness" and "lowness" usually means complexity and simplicity.
Some plants, such as aquatic ones, are cleistogamous. Cannot see why they should not be.
Contributor:
Darwin Correspondence Project
From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
30 Mar 1846
Source of text:
Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 123 Bl. 9)
Summary:
Sends specimens of grasses from Ascension Island for CD to forward to Christian Gottfried Ehrenberg.
Includes list of indigenous flowering plants of Ascension Island.
Contributor:
Darwin Correspondence Project
From:
George Robert Waterhouse
To:
Charles Robert Darwin
Date:
[30 Mar 1846]
Source of text:
DAR 39: 64–5
Summary:
Sends a list of mammalian remains found in the Buenos Aires district and purchased by the British Museum.
Contributor:
Darwin Correspondence Project
From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[11–15 Apr 1846]
Source of text:
DAR 104: 205
Summary:
Hugh Falconer gives no specific objections to Forbes’s views.
Botanical contrast between Cape of Good Hope and the rest of Africa is as strong as that between Australia and India.
Wishes CD would leave off snuff.
Contributor:
Darwin Correspondence Project
From:
William Hopkins
To:
Charles Robert Darwin
Date:
27 Apr 1846
Source of text:
DAR 39: 54–6
Summary:
Writes concerning CD’s "geometrico-geological problem". Attempts to square some of CD’s observations with certain geometrical theories concerning geological elevation.
Contributor:
Darwin Correspondence Project
From:
William Hopkins
To:
Charles Robert Darwin
Date:
5 May 1846
Source of text:
DAR 39: 57–8
Summary:
Discussion of CD’s geological problem, relating to elevation of laminated beds around a rising granitic ridge.
Contributor:
Darwin Correspondence Project
From:
George Grey
To:
Charles Robert Darwin
Date:
10 May 1846
Source of text:
DAR 144: 121c
Summary:
Returns letter from CD to J. L. Stokes [see 940 and 1030].
Contributor:
Darwin Correspondence Project
From:
Alcide Charles Victor Dessalines (Alcide) d’Orbigny
To:
Charles Robert Darwin
Date:
[June – July 1846]
Source of text:
Quarterly Journal of the Geological Society of London (Part 2) 2 1846: 59
Summary:
ACVDdO asks CD to assist him in finding correspondents willing to provide British fossil shells for his proposed work, Paléontologie universelle, in exchange for parts of ACVDdO’s palaeontological works.
Contributor:
Darwin Correspondence Project
From:
William Darwin Fox
To:
Charles Robert Darwin
Date:
[1 June 1846]
Source of text:
DAR 205.7: 280
Summary:
Hybrid geese.
Contributor:
Darwin Correspondence Project
From:
Searles Valentine Wood
To:
Charles Robert Darwin
Date:
5 June 1846
Source of text:
DAR 181: 143
Summary:
Variation in Mollusca.
Contributor:
Darwin Correspondence Project