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Showing 1–20 of 42 items
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4 page letter over 1 folio.
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A one page letter to Miles Berkeley.
CD’s tabulation of colonists curious but explicable.
Working on Tasmanian flora; contemplating general essay on Australian distribution: Tasmania and Australia same alpine species; Swan River flora very peculiar and quite distinct from New South Wales.
Trying to establish new journal at Linnean.
Latitude overrules everything in distribution. Alpine distributions are like insular. Tabulating proportions.
T. V. Wollaston’s Madeira insects: many flightless, thus not blown to sea. TVW’s insects do not confirm Forbes’s Atlantis.
JDH criticises C. J. F. Bunbury’s paper on Madeira [J. Linn. Soc. Lond. (Bot.) 1 (1857): 1–35].
Absence of Ophrys on Madeira suggests to JDH a sequence in creation of groups.
Why are flightless insects common in desert?
Australian endemism.
CD has begun seed-salting experiments. Wants JDH to write which seeds he expects to be easily killed [in salt water].
CD’s idea that coal-plants lived in salt water like mangroves made JDH savage.
Pea self-fertilisation: has forty-five varieties growing side by side.
Describes seed-salting experiments: e.g., immersion in tank filled with snow. Reports some successful germinations.
Made list of naturalised plants from Asa Gray’s Manual [of Botany] to calculate the proportions of the great families.
Rejects JDH’s suggestion that seed-salting experiments be conducted on huge scale. Only wishes to demonstrate possibility of sea transport, not establishment of any particular insular flora. More seed results.
More on seed-salting. JDH’s admission that he expected seeds to die in a week gives CD "a nice little triumph".
JDH to be appointed Assistant Director at Kew.
On where to publish seed-salting paper. Floating problem perhaps more important than germination.
CD upset because salted seeds do not float.
CD’s seed paper in Gardeners’ Chronicle [Collected papers 1: 255–8];
CD attacks Forbes’s "Atlantis".
Considers solutions to floating problem. Decides to test Azores seeds.
Photographs and drawings of CD.
Plant movement experiments with Hedysarum gyrans.
Asks JDH not to send H. C. Watson’s paper on Azores plants [Hooker’s Lond. J. Bot. 2 (1843): 1–9, 125–31, 394–408; 3 (1844): 582–617; 6 (1847): 380–97].
CD cannot endure trying all the Azorean seeds.
Seeds: worried they will turn into another barnacle job.
Studies plants colonising abandoned field.
Experiment on plant sleep movements.
CD objects to "Atlantis" because no evidence; does not affect species theory.
Finds Forbes’s continental theories, migration, and double creation are all unsatisfactory explanations of geographical distribution of plants.
Is currently working on problems of sea transport of plant species.
European plants on Australian Alps only explicable by double creations.
Detailed response to JDH’s critique of sea transport and continental connection theories. JDH’s claim that low plants are widely distributed fits both theories.
Species theory does not touch origin of life.
Thanks for Hedysarum.
Pleasure in identifying field plants.
Has used borrowing rights at Linnean Society Library arranged for him by JDH.