From J. D. Hooker 29 January 1844
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]
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
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
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
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
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
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
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
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
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 |