Notes several cases of "dioecio-dimorphism" in different genera; feels the discovery of pollen that will act only on the pistil of another flower is most important. Believes CD should next turn his attention to investigating cases of "precocious fertilisation".

Argument, based on geographical distribution and competition, for a mundane glacial period rather than cooling of one longitudinal belt at a time.

Thanks JC for pamphlets.

"I do not believe in Metempsychosis nor in Genesis – & you are growing so orthodox, that you will end your days, I believe, in believing in the Tower of Babel–."

Thanks for information about natural increase of Chillingham cattle. Compares with case in Paraguay.

Discusses dimorphism and suggests CD investigate Valeriana.

Praises CD’s views with respect to the U. S. Civil War and relations with England. Worsening relations between Britain and U. S.

Asks for information about JC’s essay, "On the relation of the domesticated animals to civilisation" [read at BAAS meeting 1859].

Gives CD an instance of facts that can be read either way as to whether a plant (Veronica humifusa) is a species or a variety.

Difficulty of distinguishing varieties and species. Did HCW suggest a printed list that might help?

Polymorphic genera.

Thanks for mentioning J. G. Kurr on nectaries [Untersuchungen über die Bedeutung der Nektarien in den Blumen (1833)]. Requests observations on flowers with curved pistils. Finds they curve toward nectary, thus lying in path of insect.

Elaborates on his article ["A popular exposition of Mr Darwin on the origin of species", Macmillan’s Mag. 3 (1860): 81–92]. Was anxious to point out that CD’s method of investigation is philosophically correct. Asks permission to call.

Comments on JL’s paper ["Notes on the generative organs, and on the formation of the egg in the Annulosa", Proc. R. Soc. Lond. 11 (1860–2): 117–24].

List of references on orchid structure and fertilisation.

Responds to CD’s inquiries about rattlesnake.

Two letters for WED at E. A. Darwin's. G. H. Darwin has been to dentist. Please collect and pay for GHD’s skates.

CD’s opinion of minor critics and commentators on Origin.

H. C. Watson’s notion of genera converging is dismissed.

Writes of Henrietta’s illness.

Physiological changes in Shetland ponies and seagulls resulting from change in diet.

Reports on the discovery of eyeless beetles in cellar [i.e., not caves]. How did they get there, and whence?

Identifies two dipterous species of parasites [chalcidites].

Was not able to attend to the aphids last year, but will make use of CD’s suggestions and "study as much as I can the inquiry as to species".

Changes in admission to Athenaeum.

Slowly working at his volume on Variation.

Experiments on insectivorous and "sensitive" plants.

Discusses the colouring of the young of various breeds of rabbit.

Observations on results of various poultry crosses and on a character which is linked to sex.