Summary

CD’s letter on wide distribution of freshwater plants and animals introduces a letter to him from Arthur H. Gray [see 11497].

Summary

Germination of Cactaceae; CD wants seeds. Site of action of growth-stimuli.

Summary

On earthquakes, and the generation of massive sea-waves that accompany them.

Summary

Appending his name to a declaration that there is no justification for a war between Russia and Great Britain.

Summary

Will exhibit the photos at the Entomological Society and have them identified.

Fritz Müller’s observations on relative abundance of mimicking and mimicked species.

Summary

Found a live mussel attached to a blue-winged teal’s foot. Had the bird not been shot, the mussel might have been transported miles.

Summary

Recounts some figures relating deaf-mutism and consanguineous marriages.

GHD has failed to be elected to the Royal Society.

Summary

CD wants some plants; asks Lynch to raise some Cactaceae for him. Observations on sensitivity and movements of radicle.

Summary

CD believes few or none have attributed deaf-mutism to consanguineous marriages.

Summary

Scheme for Jemmy Button’s grandson has fallen through, as he has already been "adopted".

Summary

Invites GJR to visit on the 18th.

Summary

WTT-D’s statement perverted by Times [4 May 1878, p. 6, on WTT-D’s Royal Institution lectures on vegetable morphology].

S. H. Vines’s work on light inhibition of Phycomyces hyphae ["The influence of light upon the growth of unicellular organs" (1878), Arb. Bot. Inst. Würzburg 2 (1882): 133–47] suggests heliotropism in green plants is independent of, and more primitive than, photosynthesis.

Heliotropism in aerial roots.

Frank Darwin’s work.

Summary

Julius von Sachs will "swear & curse" when he finds out he has missed sensitiveness of root apex. Has been putting his notes together and the case is conclusive. [Dated "Saturday 10th" by CD.]

Summary

Thanks for sending Nature; plans to leave on 22 May; anecdote about Bernard.

Summary

Reports curious case of dimorphism in Rubiaceae. Encloses envelope containing bud samples.

Summary

Blood-red onions enclosed.

GJR to come whenever convenient.

Summary

Criticises article by TM. "Such a manner of treating the work of other observers did not appear to me the way to encourage truth."

Summary

Heliotropism. Requires some plants for experiments.

Summary

Believes that weakness of hybrids explains Biblical injunctions against improper unions.

Summary

Encloses Fritz Müller letter, which may be of interest [see 11463].