In answer to CD’s queries, relates further details about feral sheep: they are sterile when wild, but can become tame again.

Discusses some calculations which he is doing for CD on the ratios of red and brown colouring in some animals.

Inquires about arrangements for the German translation and publication of their original Linnean Society papers [Collected papers 2: 3–19].

ARW thinks he has hit upon a solution to problem of geological time.

No summary available.

Encloses a letter to which he had replied and saw no need for further attention.

Is glad CD likes the new edition [of Prehistoric times].

Has been lecturing in Scotland.

Provides further detail on his smooth-leaved holly tree with a spiny-leaved branch; his gardener asserts no budding or grafting has taken place.

Asks CD’s advice on procuring rabbits for experiments [to test Pangenesis by transfusing alien blood into does and breeding from them].

Sends seeds of Lathyrus and suggests an advantage of climbing plants is to shed their seeds in places secure from animals.

Contrary to F. Delpino, in JTM’s experience Ophrys aranifera is not sterile. However, seed germination is poor.

In a densely overgrown plot Convolvulus sabatius, not normally a twiner, becomes one.

Continues his extensive study on variability in Arbutus, and speculates on selection in fruit shape.

CD’s letter on his behalf made a great impression, but his candidacy nevertheless failed, largely owing to the hostility of Claude Bernard. CD’s opinion sustains his belief that his work will be a service to science.

Discusses dimorphic and trimorphic plants; mentions especially Rubiaceae and a dimorphic monocotyledon.

Notes observations on the monstrous male flowers of Begonia,

and on self-sterile plants.

Observations on expression and variation in Asian peoples: when colour of beard and hair differ, beard is always lighter. Differences in swimming strokes. Polydactylism.

Has just sent Hooker a paper on Sikkim tree-ferns [Trans. Linn. Soc. Lond. 30 (1875): 1–44, read 1870].

Has had fever since the end of the rains.

Has received letter from Appleton’s that they agree to reprint from the latest edition of the Origin [5th English] and will add corrections sent by CD.

They wish also to receive early sheets of new book [Descent] on which they will pay £10.

Will send cheque for sales of Origin, based on older agreement between Appleton’s and Asa Gray to pay CD 5%.

Greatly pleased by approbation from CD, whom he admires and whose Origin did much for him.

Has seen some natives who express surprise by clapping the hand to mouth.

Reports on a tribe that sells its ugliest slaves in order to maintain its uniformly fine appearance.

In America in 1867 Darwinism was a fait accompli. Asa Gray’s religious defence unnecessary after Theodore Parker and Emerson.

Asks CD to which journal she should send her Lychnis paper and whether she may quote extracts from his letters to her.

He has gone through the whole embryology of the Crustacea and has arrived at a pretty well-established genealogy of the whole class; has even tried to write a history of the whole tribe. Finds he cannot adopt the old separation of Orders in the Class; the limits between them are indistinct.

Would like to study embryology of Limulus. Asks CD’s help in obtaining a female specimen.

Outlines his proposal to establish a marine zoological station.

Would like CD’s opinion on his "theory of organic disturbance" and his "law of organic combination"; hopes CD might notice them in the Academy.

Writes of his unfortunate circumstances.