Summary

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.

Summary

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.

Summary

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.

Summary

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.

Summary

More on seed-salting. JDH’s admission that he expected seeds to die in a week gives CD "a nice little triumph".

Summary

JDH to be appointed Assistant Director at Kew.

On where to publish seed-salting paper. Floating problem perhaps more important than germination.

Summary

CD upset because salted seeds do not float.

Summary

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.

Summary

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.

Summary

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.

Summary

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.

Summary

Thanks for Hedysarum.

Pleasure in identifying field plants.

Summary

Has used borrowing rights at Linnean Society Library arranged for him by JDH.

Summary

Has named 35 species of grasses.

Seed-salting continues.

Summary

CD experiments: sowing seeds in fields; "breaking" seeds’ constitution with coloured light; plant hybridisation. Compiling works on hybridism.

Respect for W. B. Carpenter.

Note on "nectar secreting" to Gardeners’ Chronicle [Collected papers 1: 258–9].

Summary

Has read a paper, presumably by JDH, using the Madeiran flora to argue against Forbes’s doctrine.

JDH asked how far CD will go in attributing common descent; he intends to show "the facts & arguments for & against the common descent of species of same genus; & then show how far the same arguments tell for or against forms, more & more widely different".

Summary

Parcels sent to Down by coach may get lost.

Summary

Praise for JDH’s Flora Indica [J. D. Hooker and T. Thomson (1855)] from CD and C. J. F. Bunbury.

CD and J. S. Henslow dining in London. JDH invited.

Summary

Burying charlock seeds.

Summary

Morning with H. C. Watson; discussed problems of inferences from buried seeds.