To J. D. Hooker 7 July [1854]
Summary
CD’s view requires only that ancient organisms resemble embryological stages of existing ones. Thus "highness" in plants is difficult to evaluate because they have no larval stages. Would compare highest members of two groups, rather than archetype, to determine which group was higher. Against Forbes’s polarity and parallelism.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 7 July [1854] |
| Classmark: | DAR 114: 123 |
| Letter no: | DCP-LETT-1577 |
To J. D. Hooker 7 September [1854]
Summary
On individuality.
Huxley’s review exquisite, but too severe on Vestiges; sorry for ridicule of Agassiz’s embryonic fishes.
Stonesfield mammals.
J. O. Westwood deserves Royal Society Medal.
Will begin species work in a few days.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 7 Sept [1854] |
| Classmark: | DAR 114: 124 |
| Letter no: | DCP-LETT-1588 |
From J. D. Hooker 25 August 1854
Summary
JDH and F. W. Binney identify Calamites specimens as pith casts. They are cryptogams related to, but higher than, Lycopodiaceae and contradict progression.
Insects found in coal.
Lyell says Stonesfield slate marsupials are actually placentals.
JDH reading Alexander Braun on individuality ["Das Individuum der Pflanze in seinem Verhältniss zur Species", Abh. K. Akad. Wiss. Berlin (Phys. Kl.) (1853): 19–122].
| Author: | Joseph Dalton Hooker |
| Addressee: | Charles Robert Darwin |
| Date: | 25 Aug 1854 |
| Classmark: | DAR 205.9: 384 |
| Letter no: | DCP-LETT-1581 |
| letter | (3) |
| Darwin, C. R. | (2) |
| Hooker, J. D. | (1) |
| Hooker, J. D. | (2) |
| Darwin, C. R. | (1) |
| Darwin, C. R. | (3) |
| Hooker, J. D. |
