From J. D. Hooker [16 November 1856]
Summary
JDH not happy with CD’s explanation of the absence of north temperate forms in the Southern Hemisphere, given his explanation for the spread of sub-arctic forms to the south. [CD’s note is in response to JDH’s criticism.]
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [16 Nov 1856] |
Classmark: | DAR 100: 162–3 |
Letter no: | DCP-LETT-1622 |
From J. D. Hooker 7 May 1856
Summary
Non-endemic Ascension Island plants brought by man, not wind-transported.
Bentham has found intermediates between oxlip and cowslip in Herefordshire.
JDH finds quantity of albumen in seeds is not variable within a species.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 7 May 1856 |
Classmark: | DAR 100: 94–5 |
Letter no: | DCP-LETT-1869 |
From J. D. Hooker [26 June or 3 July 1856]
Summary
Can no longer make out story of NW. American plants; consulting Asa Gray.
Questionable validity of seed-salting experiments.
Aristolochia and Viscum seem to shed pollen before flower opens.
Ray Society should only do translations.
Thomas Thomson in India has rediscovered Aldrovanda, a rare relative of Drosera.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [26 June or 3 July] 1856 |
Classmark: | DAR 104: 197 |
Letter no: | DCP-LETT-1911 |
From J. D. Hooker 10 July 1856
Summary
[T. Bell Salter’s?] "hybrid" Epilobium a false claim.
Admires Huxley’s response to Falconer [see 1904].
Tristan da Cunha plant list, requested by CD, supports JDH’s position [on continental extension?].
Chilean plants not exceptional.
JDH considers parallels between Australian Alps and European plants strong evidence for multiple creations.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 10 July 1856 |
Classmark: | DAR 100: 96–9 |
Letter no: | DCP-LETT-1923 |
From J. D. Hooker 4 August 1856
Summary
JDH’s arguments against transmutation: 1. Plants do not show the confusion he would expect; 2. Under clearly similar physical conditions we do not find same species.
JDH’s argument against migration: commonality of alpine species. Believes migration opposes facts of botanical distribution in Van Diemen’s Land and New Zealand; prefers continental extension theory.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 4 Aug 1856 |
Classmark: | DAR 100: 100–4 |
Letter no: | DCP-LETT-1937 |
From J. D. Hooker [early December 1856]
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [early Dec 1856] |
Classmark: | DAR 100: 149 |
Letter no: | DCP-LETT-1966 |
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 |
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 |
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 |
Darwin, C. R. | (9) |
Darwin, C. R. | |
Hooker, J. D. | (9) |