Summary

FD’s experiment shows that caustic does not interfere with the bending of radicles. Believes that the apex is a kind of brain for certain movements, being specialised to receive certain irritations.

Summary

Notes observations on sensitivity and movement of radicles.

Has finished chapter [of Movement in plants] on sleeping plants and is now looking over heliotropism notes.

Is perplexed by Erasmus Darwin; Erasmus [A. Darwin] likes it, but Henrietta thinks it much too long.

Summary

Tells arrangements for their journey to Coniston.

Summary

Requests some seeds.

Believes the leaves of Phyllanthus sleep like those of Cassia.

Summary

CD gives suggestions concerning FD’s experiments on the radicles of roots. Asks him to find out whether J. von Sachs tried beans. Should also try other gramineous plants.

Bernard looking forward to his father’s return.

Summary

Stresses importance of ensuring that cauterisation of radicles does not, through injury, prevent movement. Plans an experiment to test for "apheliotropism" in certain radicles.

Summary

CD cannot find his pincers and other tools for microscopical dissection. Does FD know where he should look?

Hopes FD will feel better after "so complete a change" [trip to North Africa].

Sends his love to George.

Bernard gets more charming every day.

CD has been put on a committee for a memorial fund for W. K. Clifford.

Summary

Has given his reasons for believing that twisting of stem is related to circumnutation in Climbing plants.

Tells results of experiments on movement of cotyledons and radicles.

Is getting aerial heliotropic roots from Kew.

Summary

Movement in plants: Philodendron and Dendrobium.

Will go to London on Thursday to receive Baly Medal. Laura Forster has offered them her house in London.

Summary

Circular about the distribution of the overplus of his income and advice on investment.