skip to content

Darwin Correspondence Project

Search Results

Darwin Correspondence Project
Search:
"Hooker J D" in search-correspondent [X]
1844 in date [X]
34 Items
Sorted by:  
Page: Prev  1 2

From J. D. Hooker   [c. 3 September 1844]

Summary

Suggests there is a direct relation between temperature and abundance of plant species.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [c. 3 Sept 1844]
Classmark:  DAR 104: 221
Letter no:  DCP-LETT-774

To J. D. Hooker   [8 September 1844]

thumbnail

Summary

Acknowledges note and parcel for Ehrenberg.

Considers why different areas have different numbers of species. Gives an example opposing JDH’s view that paucity of species results from vicissitudes of climate. CD has concluded that species are most numerous in areas that have most often been divided, isolated from, and then reunited with, other areas. Cannot give detailed reasons but believes that "isolation is the chief concomitant or cause of the appearance of new forms".

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [8 Sept 1844]
Classmark:  DAR 114: 17
Letter no:  DCP-LETT-776

From J. D. Hooker   28 October 1844

thumbnail

Summary

Discusses the connection between climate and vegetation. Believes that an equable climate is unfavourable to increase of species either by importation or modification of existing forms; illustrates his view with reference to particular floras. Hopes to acquire facts to support CD’s idea that isolation is important in producing new forms. Considers the floras of islands some of which do have distinctive species but others of which do not. Agrees that the wide ranges of cryptogams are a consequence of their means of dispersal. Asks for references to works on original creation and species mutability in order to get the best notions of "the (mad) theories of some men from Lamarck’s twaddle upwards".

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  28 Oct 1844
Classmark:  DAR 100: 16–23
Letter no:  DCP-LETT-784

From J. D. Hooker   8 November 1844

thumbnail

Summary

Sends notes on Infusoria for Ehrenberg.

Comments on distribution of species in natural orders that have local distributions. Intermediate forms between species of Lycopodium.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  8 Nov 1844
Classmark:  DAR 100: 24–5
Letter no:  DCP-LETT-788

To J. D. Hooker   [10–11 November 1844]

thumbnail

Summary

Origin of Antarctic brash ice.

Further on case of Lycopodium: does JDH know any genera of plants whose species are variable in one continent but not in another? Discussion on variations between floras as regards species richness, and factors affecting geographical distribution. On species, CD expects "that I shall be able to show even to sound naturalists that there are two sides to the question of the immutability of species; – that facts can be viewed and grouped under the notion of allied species having descended from common stocks". Mentions books and papers for and against species mutability. CD believes past absurd ideas arose from no one’s having approached subject on side of variation under domestication.

Would like to see Clarke’s paper

and would welcome visit from JDH.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [10-11 Nov 1844]
Classmark:  DAR 114: 19
Letter no:  DCP-LETT-789

From J. D. Hooker   14 November 1844

thumbnail

Summary

Differences in variability of species within a single genus. Further observations on Lycopodium.

Interested in Humboldt’s river with different floras on opposite banks, and other unexplained cases of very local distributions.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  14 Nov 1844
Classmark:  DAR 100: 26–7
Letter no:  DCP-LETT-791

To J. D. Hooker   [18 November 1844]

thumbnail

Summary

Would like JDH to visit. Regrets he will not be fit to visit JDH.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [18 Nov 1844]
Classmark:  DAR 114: 20
Letter no:  DCP-LETT-792

From J. D. Hooker   29 November 1844

thumbnail

Summary

Would like to visit on the weekend of 7–8 December.

Differences in floras of St Helena and Ascension.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  29 Nov 1844
Classmark:  DAR 100: 28
Letter no:  DCP-LETT-795

To J. D. Hooker   [2 December 1844]

thumbnail

Summary

Instructions for JDH’s trip to Down.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [2 Dec 1844]
Classmark:  DAR 114: 21
Letter no:  DCP-LETT-796

To J. D. Hooker   [4 December 1844]

thumbnail

Summary

Change in train times.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [4 Dec 1844]
Classmark:  DAR 114: 22
Letter no:  DCP-LETT-797

From J. D. Hooker   12 December 1844

thumbnail

Summary

Thanks for pleasant stay at Down.

Remarks on boulders found on southern islands.

Describes the alpine character of the Andes flora and relays information on other mountain floras.

Quotes instances of seeds that retained their vitality after being carried by ocean currents.

Sends notes on the comparative floras of New Zealand, Australia, and west coast of South America.

Encloses a copy of part of a letter from George Gardner in Ceylon concerning the European character of the mountain flora.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  12 Dec 1844
Classmark:  DAR 100: 29–31
Letter no:  DCP-LETT-799

To J. D. Hooker   16 [December 1844]

thumbnail

Summary

Thanks for botanico-geographical remarks. CD greatly appreciates JDH’s valuable generalisations.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  16 [Dec 1844]
Classmark:  DAR 114: 23
Letter no:  DCP-LETT-800

To J. D. Hooker   25 December [1844]

thumbnail

Summary

Questions on JDH’s sketch comparing floras of Australia, New Zealand, and western S. America; wishes to know botanical relations between other southern islands. Botanico-geographical discussions and comments on books sent by JDH.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  25 Dec [1844]
Classmark:  DAR 114: 24
Letter no:  DCP-LETT-803

From J. D. Hooker   30 December 1844

thumbnail

Summary

Thanks for CD’s comments on "sketch".

Lengthy discussion of geographical distribution and island floras.

Has been "delighted with" [Robert Chambers’] Vestiges [of creation (1844)].

Galapagos flora work goes on well.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  30 Dec 1844
Classmark:  DAR 100: 32–4
Letter no:  DCP-LETT-804
Document type
letter (34)
Author
Addressee
Correspondent
Date
1844
01 (4)
02 (3)
03 (5)
04 (2)
06 (2)
07 (3)
08 (1)
09 (2)
10 (1)
11 (5)
12 (6)
Page: Prev  1 2
letter