Delighted to see him on Tuesday.

Has a magnificent bush of Porlieria. There is no vestige of bloom; CD will test for sleep movements. Reports successful experiments on temperature-induced sensitivity of radicles.

Has been approached by [H. R. Hope-]Pinker who wishes to sculpt him for the Royal Institution; asks whether WS has any knowledge of the matter.

Describes sleep movements in Porlieria and his experiments on movements of radicles.

Thalia flowers have interesting mechanism to ensure cross-fertilisation.

Asks for sketches of [Thalia] pistil, in which he is much interested.

Letter of condolence on reading Times report of death of WDF’s daughter.

Rejoices that "Lagrange’s case does not seem very bad".

CD is working hard at dissecting Thalia. Has recovered some handiness with microscope.

Thanks GHD for his drawings [of Thalia]. Some parts need attention.

Movement and sensitivity of flower parts; relationship to cross-fertilisation.

Writes to say that the point on which he thought GHD’s drawings were mistaken proves to be an error in his own observation.

Enjoyed OCM’s visit.

Sends photographs.

Asks for list of families of sleeping plants. Believes sleep is merely modified circumnutation at a particular time of day.

Porlieria has had no water for some time but shows no sign of flagging.

Describes the response of Thalia flowers to touch.

Discusses "highly expressive" speech of young children.

Asks TW not to send more information as CD does not expect a new edition of Forms of flowers.

TW’s Stachys case is what he calls gynodioeciousness.

Discusses sleep movements of Porlieria.

Has read an abstract of Julius Wiesner on heliotropism and geotropism ["Die heliotropischen Erscheinungen im Pflanzenreiche", Anz. Kais. Akad. Wiss. Wien 15 (1878): 137–40] which seems important but is puzzling.

Gives details of his observations on climbing plants with reference to comments by Julius Sachs.

Federico Delpino on mechanical movements of flower parts of Maranta. CD’s observations on Maranta, and his eagerness to compare cases of movement and irritability in plants.

Offers to give CGS a writing machine.

Has offered Carl Semper the writing machine.

Speculates on the mechanism of movement in plants and their reception of and response to stimuli.

Considers Brown-Séquard’s discovery of inheritance of injury to nerves most important hereditary observation ever. Extremely interested in correspondent’s confirmation. Impressed that in reported cases of inherited injury suppuration tends to follow the injury.

Thanks for seeds

and information about earthworms.

Is working hard at movement in plants.