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From J. D. Hooker   29 January 1844

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Summary

Remarks on geographical divisions of the flora of the Southern Hemisphere.

JDH beginning Galapagos plants. Value of studying insular floras with respect to inquiries about adaptation of species.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  29 Jan 1844
Classmark:  DAR 100: 5–7
Letter no:  DCP-LETT-734

From J. D. Hooker [23 February –   6 March 1844]

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Summary

Island floras; relationships with mainland. Ranges of species in mundane genera.

Galapagos plants one-third done.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [23 Feb – 6 Mar 1844]
Classmark:  DAR 100: 10–11
Letter no:  DCP-LETT-737

From J. D. Hooker   9 March 1844

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Summary

Thanks for information on Malden Island. Comments on its plants and their relationship to the Galapagos flora. Discusses the flora of Oceania. Gives his opinion on the extent of the uniformity in species and forms amongst South Sea Islands. Large genera are more widely diffused and have a larger proportion of species with wide ranges.

Seeks advice on expense of preparing plates [for Flora Antarctica].

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  9 Mar 1844
Classmark:  DAR 100: 8–9
Letter no:  DCP-LETT-739

From J. D. Hooker   5 April 1844

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Summary

Answer to CD’s query on genera and species ranges.

Comments on typical forms.

Preparing first part of Galapagos plants for printing.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  5 Apr 1844
Classmark:  DAR 100: 12–13
Letter no:  DCP-LETT-745

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

From J. D. Hooker   28 October 1844

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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

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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

From J. D. Hooker   14 November 1844

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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

From J. D. Hooker   29 November 1844

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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

From J. D. Hooker   12 December 1844

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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

From J. D. Hooker   30 December 1844

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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 (11)
Author
Hooker, J. D.[X]
Addressee
Correspondent
Darwin, C. R.[X]
Hooker, J. D. (11)
Date
1844
01 (1)
02 (1)
03 (1)
04 (1)
09 (1)
10 (1)
11 (3)
12 (2)
letter