To Asa Gray 11 August [1858]
Summary
Species migration since the Pliocene. Effect of the glacial epoch. Present geographical distribution, especially similarities of mountain floras, explained by such migration; mountain summits as remnants of a once continuous flora and fauna.
Cross-fertilisation in Fumariaceae.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 11 Aug [1858] |
Classmark: | Archives of the Gray Herbarium, Harvard University (42 and 9a) |
Letter no: | DCP-LETT-2321 |
Matches: 5 hits
- … America, and of other parts of the northern temperate zone. [Read 14 December 1858 and 11 …
- … till it became what it now is; & then the temperate parts of Europe & America would be …
- … considerably distressed , that several temperate forms slowly travelled into the heart of …
- … As the temperature rose, all the temperate intruders would crawl up the mountains. Hence …
- … identical but representative forms of N. temperate plants. — There are similar classes of …
From Asa Gray 23 January 1860
Summary
American edition of Origin. AG’s assessment of the book’s weak and strong points. Suggests Jeffries Wyman would be a useful source of facts and hints for CD.
Author: | Asa Gray |
Addressee: | Charles Robert Darwin |
Date: | 23 Jan 1860 |
Classmark: | DAR 98 (ser. 2): 22–5 |
Letter no: | DCP-LETT-2663 |
To Asa Gray 7 January [1860]
Summary
Comments on AG’s memoir on Japanese plants [see 2599]; relationship of Japanese flora to N. American.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 7 Jan [1860] |
Classmark: | Gray Herbarium of Harvard University (15) |
Letter no: | DCP-LETT-2645 |
Matches: 1 hit
- … America, and of other parts of the northern temperate zone. [Read 14 December 1858 and 11 …
To Asa Gray 11 November [1859]
Summary
Sends copy of Origin for comments.
Does not feel AG’s views of migration after the last glaciation explain distribution in U. S. as well as CD’s view of migration prior to glaciation.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 11 Nov [1859] |
Classmark: | Archives of the Gray Herbarium, Harvard University (17) |
Letter no: | DCP-LETT-2520 |
Matches: 1 hit
- … America, and of other parts of the northern temperate zone. [Read 14 December 1858 and 11 …
To Asa Gray 22 October 1872
Summary
Spiralling of tendrils.
Has worked hard on Drosera.
Is interested in tracing the "nerves" of Dionaea which follow the vascular bundles. Finds he can paralyse half of the leaf by pricking it at a certain point.
Wishes AG to carry out two experiments on D. filiformis.
Has received AG’s Dubuque address [Am. J. Sci. 3d ser. 4 (1872): 282–98].
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 22 Oct 1872 |
Classmark: | Gray Herbarium of Harvard University (100) |
Letter no: | DCP-LETT-8568 |
Matches: 1 hit
- … D. Hooker, 10 October [1872] )). Many temperate species of Drosera (sundew) die back in …
To Asa Gray 28 July [1862]
Summary
AG’s "capital" review of Orchids [Am. J. Sci. 2d ser. 34 (1862): 138–44].
Thinks there are three forms of Lythrum salicaria.
Discusses transport of seeds by sea.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 28 July [1862] |
Classmark: | Gray Herbarium of Harvard University (75) |
Letter no: | DCP-LETT-3667 |
Matches: 1 hit
- … the vegetation southwards, causing the temperate flora of southern Greenland to be ‘driven …
To Asa Gray 10 September [1866]
Summary
L. Agassiz’s evidence [for glaciation of America] is very weak.
Thanks AG for arranging for American edition of Variation, but doubts that the book will be successful.
Has found no differences in pollen of Rhamnus so cannot conjecture whether it is dimorphic.
The common oxlip of England is certainly a hybrid between the primrose and the cowslip whereas Primula elatior is a good species.
Reports experiments on the relative vigour of seedlings from cross- and self-fertilised plants.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 10 Sept [1866] |
Classmark: | Gray Herbarium of Harvard University (92) |
Letter no: | DCP-LETT-5210 |
Matches: 1 hit
- … former existence of glaciers even in a temperate region. With respect to the Origin, you …
To Asa Gray 2 May [1856]
Summary
Suggests affinities of the U. S. flora that he considers would be worth investigating. Wants to know the ranges of species in large and small genera.
Questions AG on naturalised plants; whether any are social in U. S. which are not so elsewhere and how variable they are compared with indigenous species. Would like to know of any differences in the variability of species at different points of their ranges and also the physical states of plants at the extremes of their ranges.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 2 May [1856] |
Classmark: | Archives of the Gray Herbarium, Harvard University (4) |
Letter no: | DCP-LETT-1863 |
Matches: 1 hit
- … been introduced by man. — I would give list, of temperate plants (if any) found in Eastern …
To Asa Gray 24 December [1859]
Summary
Thanks for AG’s Japan memoir [Mem. Am. Acad. Arts & Sci. 6 (1857–9): 377–452]. Does not think AG’s arguments for a warm post-glacial period are sufficient, but will not be sorry to be proved wrong.
Believes natural selection explains many classes of facts which repeated creation does not.
Writes of some responses to the Origin.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 24 Dec [1859] |
Classmark: | Archives of the Gray Herbarium, Harvard University (46) |
Letter no: | DCP-LETT-2599 |
Matches: 1 hit
- … America, and of other parts of the northern temperate zone. [Read 14 December 1858 and 11 …
letter | (9) |
Darwin, C. R. | (8) |
Gray, Asa | (1) |
Gray, Asa | (8) |
Darwin, C. R. | (1) |
Origin: the lost changes for the second German edition
Summary
Darwin sent a list of changes made uniquely to the second German edition of Origin to its translator, Heinrich Georg Bronn. That lost list is recreated here.
Matches: 10 hits
- … on the mountains of Abyssinia, and likewise to those of temperate Europe. This is one of the most …
- … than at present in various parts of the tropics, where temperate forms apparently have crossed; but …
- … So again, on the island of Fernando Po, Mr. Mann found temperate European forms first beginning to …
- … of the torrid zone harmoniously blended with those of the temperate. So that under certain …
- … have co-existed for an indefinitely long period mingled with temperate forms. At one time …
- … cannot look to the peninsula of India for such a refuge, as temperate forms have reached nearly all …
- … of Java we see European forms, and on the heights of Borneo temperate Australian productions. If we …
- … continent to its southern extremity; but we now know that temperate forms have likewise travelled …
- … are on the mountains of Brazil a few southern and northern temperate and some Andean forms, which it …
- … number of forms in Australia, which are related to European temperate forms, but which differ so …
2.22 L.-J. Chavalliaud statue in Liverpool
Summary
< Back to Introduction At about the time when a statue of Darwin was being commissioned by the Shropshire Horticultural Society for his native town of Shrewsbury, his transformative contributions to the sciences of botany and horticulture were also…
Matches: 1 hits
- … Moncur, who also worked on the north and south blocks of the Temperate House at Kew. The Palm House …
Darwin's notes for his physician, 1865
Summary
On 20 May 1865, Emma Darwin recorded in her diary that John Chapman, a prominent London publisher who had studied medicine in London and Paris in the early 1840s, visited Down to consult with Darwin about his ill health. In 1863 Chapman started to treat…
Matches: 1 hits
- … lumbago– fundament–rash. Always been temperate– now wine comforts me much– could …
Darwin in letters, 1869: Forward on all fronts
Summary
At the start of 1869, Darwin was hard at work making changes and additions for a fifth edition of Origin. He may have resented the interruption to his work on sexual selection and human evolution, but he spent forty-six days on the task. Much of the…
Matches: 1 hits
- … would migrate towards the equator during an ice age and that temperate species would survive at …
Rewriting Origin - the later editions
Summary
For such an iconic work, the text of Origin was far from static. It was a living thing that Darwin continued to shape for the rest of his life, refining his ‘one long argument’ through a further five English editions. Many of his changes were made in…
Matches: 1 hits
- … of similar species in both the northern and southern temperate zones. In the first edition of …
Darwin in letters,1866: Survival of the fittest
Summary
The year 1866 began well for Charles Darwin, as his health, after several years of illness, was now considerably improved. In February, Darwin received a request from his publisher, John Murray, for a new edition of Origin. Darwin got the fourth…
Matches: 1 hits
- … observed distributions, such as the presence of the same temperate species on distant mountains, and …
Satire of FitzRoy's Narrative of the Voyages of the Adventure and Beagle, by John Clunies Ross. Transcription by Katharine Anderson
Summary
[f.146r Title page] Voyages of the Adventure and Beagle Supplement / to the 2nd 3rd and Appendix Volumes of the First / Edition Written / for and in the name of the Author of those / Volumes By J.C. Ross. / Sometime Master of a…
Matches: 1 hits
- … Settlement – a thoroughly convict colony – a healthy temperate climate – far removed from civilized …