Summary

Has got a cold, so will not go to Kew. Wrote to Hartnack about price of microscopes and describes own model. Told Hooker about Tisley Spiller’s microscope in Paris.

Summary

Observations on the leaves of Desmodium. Most are trifoliate; none has tendrils. Gives some comments from Hooker.

Summary

Sends notes on waxy secretion on leaves for F. M. Balfour; cannot procure any more Dionaea.

Summary

Wants FD to look at the little lateral leaflets of Desmodium. CD has "a wild hypothesis that the little leaflets may be tendrils reconverted into leaflets".

Summary

Lists observations he would like FD to make on the dried species of Desmodium at Kew.

Summary

Has visited Alford and Beesby.

Summary

Sends table showing relative force of impact of weight dropped on a plane inclined at different angles.

Summary

On bodies of varying elasticity bouncing off inclined planes [see 9096].

Summary

Asks for details about microscope parts.

Wants FD to ask Hooker for species of Desmodium; CD believes he has found new movements.

Also ask whether Hooker has Drosophyllum.

Summary

CD thinks GHD’s letter is an excellent clarification [of CD’s conjectural view on the elimination of useless parts in species], but does not want to publish it as his [CD’s] own. Asks GHD to think carefully before he publishes it.

Summary

Asks GHD whether he can tell him what inclination a polished or waxy leaf ought to hold to the horizon in order to let vertical rain rebound off as much as possible.

Summary

"It is a fearfully difficult moral problem about speaking out on religion, & I have never been able to make up my mind."

An Irishman, a "grand breeder" of short-horns, declared at lunch that CD’s books had been "a great help to [him] in breeding!"

Summary

Thanks KM for gift of his "great work on Capital" [2d German ed. of Das Kapital]. Wishes he understood more of "the deep & important subject of political Economy".

Summary

Apologises for his ignorance in interpreting the results secured in his testing with blue litmus paper.

Summary

Thanks for TE’s work on [Beroe?] with illustrations of its parts [Zoologische Studien auf Capri 1 (1873)].

Summary

Discusses his health following a visit to Dr C[lark?]. Has made an appointment for CD.

Summary

Requests a piece of the most sensitive litmus paper in order to test the secretions of minute hairs of plants which catch minute flies. [See 9098.]

Summary

Sends some litmus paper for CD.

Summary

Further details on inheritance of an eyelid abnormality.

Summary

Sends CD a draft of a letter to Nature [see 9087], which he thinks expresses CD’s meaning.