Does not believe in regeneration of monstrous toe.

Pigeon and poultry experiments.

Peculiar pigeon at Philoperisteron [pigeon fanciers’ club].

Discusses the ill-will between England and U. S.

Considers the bases for deciding which plant species are "high" and which "low".

Comments on Alphonse de Candolle’s paper on oaks ["Étude sur l’espèce", Ann. Sci. Nat. (Bot.) 4th ser. 18 (1862): 59–110].

Encloses S. H. Scudder’s letter on Lepidoptera and fertilisation of orchids which identifies a butterfly with Platanthera pollinia adhering to it. Jokingly applies natural selection to butterflies acted on by orchid pollinia.

Grateful for CD’s commendation of his Glen Roy paper ["Parallel roads of Glen Roy", Q. J. Geol. Soc. Lond. 19 (1863): 235–59].

Reading Justus Liebig [trans. William Gregory, Animal chemistry or organic chemistry (1842)] has suggested that pattern of evolutionary succession might depend on differential need for soil minerals.

Naudin has not answered CD’s letter.

Reactions of Candolle, Naudin, Decaisne, and Gaston de Saporta to Origin.

CD’s new hothouse.

CD’s Linum paper.

JDH’s work on Welwitschia.

Asks CD’s views on TR’s observations that leaves breathe from their under-surfaces.

Peach-trees in hothouses cannot be kept in health unless fresh air is admitted so as to make its way under the leaves.

Continues his observations on the effect of environment on men – those migrating to America gradually assuming Indian-like features.

Thanks for CD’s experimental suggestions. Will count seeds of hybrid crosses.

Requests suggestions for Edinburgh Botanical Society expedition to British Columbia.

Invites CD to visit offices of the Field; editor wishes CD to place natural history inquiries there.

Suggests collecting seeds at different heights from British Columbia.

Describes experiment on seeds from short anthers.

C. V. Naudin writes he has discovered cause of hybrid sterility.

His observations of "selection" in growth of seedling trees.

Thinks he may be appointed Commodore commanding the Squadron on the west coast of S. America. Wishes to leave England for his health’s sake.

Hopes they might meet as WDF has to come to town.

Forwards a book [Horace Dobell, Lectures on the germs and vestiges of disease (1861)] and a genealogical table at the author’s request.

Has read Origin with satisfaction. He had long ago come to consider the fixity of species as contrary to the facts, but could see no suitable alternative. The Origin has brought the light to guide him.

Sends CD a copy of his latest work ["Mémoire sur la production artificielle des monstruosités", Ann. Sci. Nat. (Zool.) 4th ser. 18 (1862): 243–76]. Hopes to explain a great number of anomalies by his experimental work on artificially produced monstrosities.

Cites [C. F.?] Burdach as the source of a note on atavism in alternate generations.

Wants to talk to CD about inheritance.

Sends some tickets so that CD’s son might see [an unspecified] model.

Plans to meet CD in town.

Invites CD to visit on Sunday afternoon, for a quiet discussion with Huxley, the Bishop of Natal [J. W. Colenso], and herself. Will not trouble him with any eating.

Has been unable to find a book [unspecified] wanted by CD.

Thanks GGS for calculation [to determine the chances of the same peculiarity recurring in a family, see Variation 2: 5]

Sends his paper ["Über Dichogamie nach C. C. Sprengel und Ch. Darwin", Bot. Ztg. (1863): 1–7, 9–16].