Summary

Asks FD to check whether a Latin sentence is correct.

Summary

Sends £600 bequeathed by Susan Darwin to CD’s younger children.

Summary

The horns and spines of homopterous insects do not vary between sexes. Sexual differences in Blattidae.

Summary

Made aware by Asa Gray of error with respect to Cypripedium. Does not doubt it is self-fertilised.

Summary

Reports observations, as requested by CD, on expression in chimpanzees and orangs at Zoological Garden, London [see Expression, p. 95].

Summary

Thanks CD for sending F. H. G. Hildebrand’s book on fertilisation [Die Geschlechter-Vertheilung bei den Pflanzen (1867)]

and J. D. Hooker’s "Lecture on insular floras".

Describes work on Rubiaceae, Oxalis,

and on crossing orchids. Lists crosses made.

As for CD’s query concerning sexual differences among invertebrates, he gives the case of the local amphipod, Brachyscellus diversilor. Male differs in shape of antennae and coloration.

Also mentions local fish in sea near Sta Catharina which emits melodic tone to attract females.

Summary

Has asked a classics scholar about a word for Pangenesis. He suggests "atomogenesis".

Is getting in rather a fright about the coming exams.

Summary

Thanks for CD’s letter inquiring about capsules produced by the Maxillaria with larger pods [see 5331]. Gives descriptions of Maxillaria and of the other Vandeae.

Describes Oncidium flexuosum.

Tells of botanical results of recent excursion to the German colony Theresopolis. Brought home fine collection of living orchids.

Summary

Asks JvH’s assistance in making observations on the expression of emotions. Encloses 17 queries that are being sent to various parts of the world.

Summary

Describes his experiments in fertilising Oncidium flexuosum and comparison with Notylia.

Has been examining Catasetum.

Encloses seeds of two species of Gesneria and describes hairs in the seed capsule. Hairs in other plants seem to have a different function.

Starting tomorrow for a botanical excursion on the Continent.

Summary

Sends Swiss Aquilegia flowers in which insects have eaten away the spurs.

Suggests fetid smell of Stapelia attracts carrion flies.

Summary

Woolner’s bust.

Smith’s health.

St Helena Umbelliferae.

Brambles.

Summary

Sends FJW replies to queries about expression.

Summary

Has been hunting for an otter-hound for CD.

Hopes CD will visit his museum at the Horticultural [Society].

Summary

Wynne [gardener] suggests he should be paid from the money from the sale of the Mount, but EAD suggests an annual subscription instead.

Summary

JvH forwards J. Stack’s replies to CD’s queries about expression [see Expression, p. 20].

Sends photos of skeletons of six species of Dinornis he is assembling for the Museum.

Summary

JvH will help with expression queries. Considers CD’s investigation highly important and original. Sends list of men to whom he is sending copies of the questions.

Summary

Discusses proposed sale of house and provision for Wynne, the gardener, and his wife.

Summary

The date-palm seed case is important for Pangenesis.

Reports experiments on pollination of Ipomoea.

"Insular floras": A. Murray’s paper in Gardeners’ Chronicle is poor.

John Scott’s work on acclimatisation of plants.

The anomaly of the Azores flora on the migration theory.

Summary

Thanks for German version of Origin [1867].

Dipterous insects are adapted to eating pollen rather than only to sucking nectar. He describes such adaptations in two dipteran species.