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 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 |
Darwin, C. R. | (4) |
Hooker, J. D. | (3) |
Hooker, J. D. | (4) |
Darwin, C. R. | (3) |
Darwin, C. R. | (7) |
Hooker, J. D. | (7) |