To J. D. Hooker 14 July [1857]
Summary
Asks to borrow several Floras. Must redo calculations as John Lubbock has shown him an important error.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 14 July [1857] |
| Classmark: | DAR 114: 204 |
| Letter no: | DCP-LETT-2124 |
Matches: 4 hits
- … To J. D. Hooker 14 July [1857] …
- … June 1847] ). See letter to J. D. Hooker, 5 July [1857] . Boreau 1840 . Fürnrohr 1839 . …
- … 14 [July 1857] ). See letter to J. D. Hooker, 1 July [1857] . The letter has not been …
- … For CD’s query, see letter to J. D. Hooker, 5 July [1857] . CD had mentioned this case of …
To J. D. Hooker 1 July [1857]
Summary
George Henslow’s curtness to JDH: "an attack of religion".
Embryonic leaves. Adaptive functions and taxonomic significance of cotyledons.
Asa Gray. Separation of sexes in U. S. trees.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 1 July [1857] |
| Classmark: | DAR 114: 198 |
| Letter no: | DCP-LETT-2116 |
To J. D. Hooker 5 July [1857]
Summary
Does JDH’s Wahlenbergia confirm CD’s law? Variations of one species assume the character of a distinct but allied species or genus.
Seed-salting: old ones float and germinate.
Owen’s "grand paper" [? J. Proc. Linn. Soc. Lond. (Zool.) 2 (1858): 1–37].
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 5 July [1857] |
| Classmark: | DAR 114: 203 |
| Letter no: | DCP-LETT-2117 |
To John Lubbock 14 [July 1857]
Summary
Thanks JL for saving him from "a disgraceful blunder". Following their conversation he has divided the New Zealand flora as JL suggested and finds genera with four or more species are more variable than those with three or less. It will take several weeks to go back over all his material.
| Author: | Charles Robert Darwin |
| Addressee: | John Lubbock, 4th baronet and 1st Baron Avebury |
| Date: | 14 [July 1857] |
| Classmark: | DAR 263: 18 (EH88206467) |
| Letter no: | DCP-LETT-2123 |
From Asa Gray 7 July 1857
Summary
Believes, with CD, that extinction may be an important factor in explaining plant distributions, but sees no reason why the several species of a genus must ever have had a common or continuous area. "Convince me of that, or show me any good grounds for it … and I think you would carry me a good way with you". It is just such people as AG that CD has to satisfy and convince.
Feels that the crossing of individuals is important in repressing variation and perhaps in perpetuating the species, but instances some plants in which it cannot, apparently, take place.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 7 July 1857 |
| Classmark: | DAR 205.9: 381; DAR 165: 98 |
| Letter no: | DCP-LETT-2120 |
To Asa Gray 20 July [1857]
Summary
Believes species have arisen, like domestic varieties, with much extinction, and that there are no such things as independently created species. Explains why he believes species of the same genus generally have a common or continuous area; they are actual lineal descendants.
Discusses fertilisation in the bud and the insect pollination of papilionaceous flowers. His theory explains why, despite the risk of injury, cross-fertilisation is usual in the animal and vegetable kingdoms, even in hermaphrodites.
| Author: | Charles Robert Darwin |
| Addressee: | Asa Gray |
| Date: | 20 July [1857] |
| Classmark: | Archives of the Gray Herbarium, Harvard University (9b) |
| Letter no: | DCP-LETT-2125 |
To W. E. Darwin 21 [July 1857]
Summary
Writes of WED’s recent excursion to Manchester and his future educational plans.
| Author: | Charles Robert Darwin |
| Addressee: | William Erasmus Darwin |
| Date: | 21 [July 1857] |
| Classmark: | DAR 210.6: 16 |
| Letter no: | DCP-LETT-2097 |
Matches: 1 hit
- … J. D. Hooker, [12 September 1847] ). Of the Gainsborough portraits at Dulwich, the most famous was the double portrait of Elizabeth Ann and Maria Linley . Knole House, near Sevenoaks, Kent. Robert Bickersteth Mayor was William’s housemaster at Rugby School. Frederick Temple , who had obtained a double first class in mathematics and classics at Oxford and was a fellow of Balliol College, became headmaster of Rugby School on 12 November 1857. …
| letter | (7) |
| Darwin, C. R. | (6) |
| Gray, Asa | (1) |
| Hooker, J. D. | (3) |
| Darwin, C. R. | (1) |
| Darwin, W. E. | (1) |
| Gray, Asa | (1) |
| Lubbock, John | (1) |
| Darwin, C. R. | (7) |
| Hooker, J. D. | (3) |
| Gray, Asa | (2) |
| Darwin, W. E. | (1) |
| Lubbock, John | (1) |
