From J. D. Hooker [24 June 1854]
Summary
Birth of JDH’s second child.
Asks CD’s view of "highness" and "lowness" in animals. Gives his own for plants; extent of deviation from type, e.g., floral parts deviating from leaf.
Reading B. C. Brodie’s Psychological inquiries [1854].
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [24 June 1854] |
Classmark: | DAR 104: 202–4 |
Letter no: | DCP-LETT-1572 |
To J. D. Hooker 27 [June 1854]
Summary
CD gives his definition of "highness" and "lowness" as "morphological differentiation" from a common embryo or archetype. JDH’s view, with which CD agrees when it can be applied, is the same as Milne-Edwards’, i.e., the physiological division of labour. There is little agreement among zoologists and CD admits his own lack of clarity.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 27 [June 1854] |
Classmark: | DAR 114: 121 |
Letter no: | DCP-LETT-1573 |
To Edward Sabine 28 June [1854]
Summary
Is unequal to taking chair as President of Natural History Section of BAAS meeting in Liverpool. Very little fatigue or excitement brings on swimming of head, nausea, and other symptoms.
Author: | Charles Robert Darwin |
Addressee: | Edward Sabine |
Date: | 28 June [1854] |
Classmark: | The Royal Society (Sa: 386) |
Letter no: | DCP-LETT-1574 |
From J. D. Hooker [29 June 1854]
Summary
JDH on "highness" of Coniferae: they are genuine Dicotyledons, not a link to cryptogams; that is a geologists’ fallacy. Thus they are highest plants in Carboniferous.
Does not agree with CD’s "elastic" species theory. Long correspondence with Lyell on this.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [29 June 1854] |
Classmark: | DAR 205.9: 383 |
Letter no: | DCP-LETT-1576 |
letter | (4) |
Darwin, C. R. | (2) |
Hooker, J. D. | (2) |
Darwin, C. R. | (2) |
Hooker, J. D. | (1) |
Sabine, Edward | (1) |
Darwin, C. R. | (4) |
Hooker, J. D. | (3) |
Sabine, Edward | (1) |