To J. D. Hooker [early December 1856]
Summary
Sends JDH part of MS for chapter 3 of Natural selection ["Possibility of all organic beings crossing"] to be corrected and returned.
JDH’s report of Podostemon flowering cleistogamously under water in Bengal.
[Copious revision by JDH.]
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [early Dec 1856] |
Classmark: | DAR 205.5: 213 |
Letter no: | DCP-LETT-1974 |
To J. D. Hooker [19 October 1856]
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [19 Oct 1856] |
Classmark: | DAR 114: 179 |
Letter no: | DCP-LETT-1977 |
From J. D. Hooker 9 November 1856
Summary
JDH approves MS section on geographical distribution.
Never felt so shaky about species before.
His objections to some mechanisms of distribution that CD proposes.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 9 Nov 1856 |
Classmark: | DAR 100: 105–10 |
Letter no: | DCP-LETT-1983 |
To J. D. Hooker 11–12 November [1856]
Summary
CD relieved by JDH’s positive response to his MS.
CD continues observations on means of transport.
JDH’s Raoul Island paper [J. Linn. Soc. Lond. (Bot.) 22 (1857): 133–41], showing continuity of vegetation with New Zealand, best evidence yet of continental extension.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 11–12 Nov [1856] |
Classmark: | DAR 114: 181 |
Letter no: | DCP-LETT-1986 |
To J. D. Hooker 15 November [1856]
Summary
CD finds JDH’s objections to a mundane cold period significant, and he endeavours to show how they do not rule out mutability.
He is writing on crossing.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 15 Nov [1856] |
Classmark: | DAR 114: 182 |
Letter no: | DCP-LETT-1989 |
To J. D. Hooker 18 November [1856]
Summary
CD encloses letter from Asa Gray, although it is critical of JDH.
Role of struggle in forming species in retreat from advancing glaciers.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 18 Nov [1856] |
Classmark: | DAR 114: 183 |
Letter no: | DCP-LETT-1991 |
From J. D. Hooker 22 November 1856
Summary
Continued debate on formation of species as a result of retreat from glaciers.
JDH suggests internal powers of species modification, which he knows CD abhors.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 22 Nov 1856 |
Classmark: | DAR 100: 111–12 |
Letter no: | DCP-LETT-1995 |
To J. D. Hooker 23 November [1856]
Summary
CD, attempting to clarify debate, states more of his position. External conditions cause "mere variability". Formation of species due to selection. Relation of an organism to its associates far more important than external conditions.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 23 Nov [1856] |
Classmark: | DAR 114: 184 |
Letter no: | DCP-LETT-1997 |
To J. D. Hooker 1 December [1856]
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 1 Dec [1856] |
Classmark: | DAR 114: 185 |
Letter no: | DCP-LETT-2008 |
From J. D. Hooker 7 December 1856
Summary
Has done New Zealand flora calculations. Results support CD’s theory of necessity of crossing. Trees tend to have separate sexes.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 7 Dec 1856 |
Classmark: | DAR 100: 113–14 |
Letter no: | DCP-LETT-2014 |
To J. D. Hooker 10 December [1856]
Summary
CD is convinced of relation between separation of sexes and tree-habit.
Recent hard blows against crossing theory.
CD long tormented by land molluscs on oceanic islands; found transport possible experimentally.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 10 Dec [1856] |
Classmark: | DAR 114: 186 |
Letter no: | DCP-LETT-2018 |
To J. D. Hooker 24 December [1856]
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 24 Dec [1856] |
Classmark: | DAR 114: 187 |
Letter no: | DCP-LETT-2022 |
From J. D. Hooker [24 March 1863]
Summary
Has been looking at separation of sexes in poplars.
Interested in reversion.
Does not understand all CD said on inheritance.
JDH now remembers that Origin was "published" some time before it was "distributed" and therefore appeared prior to his own essay [see also 2478].
Impossible to say whether some Dipterocarpaceae survived a cold period or have developed since.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [24 Mar 1863] |
Classmark: | DAR 100: 154, DAR 101: 123–5 |
Letter no: | DCP-LETT-2027 |
To J. D. Hooker [after 20 January 1857]
Summary
CD finds Alphonse de Candolle very useful, though JDH has low opinion.
CD argues for accidental introductions explaining some odd distributions, e.g., New Zealand vs Australian plants.
CD’s method.
Diverging affinities in isolated genera.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [after 20 Jan 1857] |
Classmark: | DAR 114: 190 |
Letter no: | DCP-LETT-2033 |
To J. D. Hooker 17 January [1857]
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 17 Jan [1857] |
Classmark: | DAR 114: 188 |
Letter no: | DCP-LETT-2040 |
To J. D. Hooker 20 January [1857]
Summary
CD will advise Daniell not to apply for Royal Society grant.
CD’s experiment: fish fed seeds, which germinated when voided.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 20 Jan [1857] |
Classmark: | DAR 114: 189 |
Letter no: | DCP-LETT-2042 |
To J. D. Hooker 15 March [1857]
Summary
Separation of sexes in trees [U. S.].
Do plants offer positive evidence for "continuous land" theory?
Protean genera.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 15 Mar [1857] |
Classmark: | DAR 114: 193 |
Letter no: | DCP-LETT-2066 |
To J. D. Hooker [21 March 1857]
Summary
Ranges of species in large vs small genera: Asa Gray’s compilation fits CD’s expectation.
CD studies seedling mortality in his weed garden.
JDH’s work on Indian flora.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [21 Mar 1857] |
Classmark: | DAR 114: 192a |
Letter no: | DCP-LETT-2067 |
To J. D. Hooker 8 April [1857]
Summary
Independence of variation from climate shown by several plant genera; CD asks for confirmation.
Progressing with book [Natural selection].
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 8 Apr [1857] |
Classmark: | DAR 114: 191 |
Letter no: | DCP-LETT-2073 |
From J. D. Hooker [11 April 1857]
Summary
JDH cites W. H. Harvey’s observations on Fucus and David Don’s on Juncus as examples of variations that are independent of climate. There are many such cases. Gives his working scheme for categorising variation.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [11 Apr 1857] |
Classmark: | DAR 104: 198–201 |
Letter no: | DCP-LETT-2074 |
Darwin, C. R. | (859) |
Hooker, J. D. | (520) |
Darwin, Emma | (1) |
Wedgwood, Emma | (1) |
Hooker, J. D. | (859) |
Darwin, C. R. | (520) |
Darwin, C. R. | (1379) |
Hooker, J. D. | |
Darwin, Emma | (1) |
Wedgwood, Emma | (1) |
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