Data on good and bad pollen-grain yields of different species. Sends sketches of two male Rhamnus catharticus flowers [see Forms of flowers, p. 294].

Identified two flies as species of Empis that suck flowers, but the females also feed on small Diptera.

Reports two observations on crossing in dogs: the preservation of both pure types in the offspring of a pointer and a setter, and the influence of a first mating with a mongrel on the progeny of a Barbary bitch and a subsequent Barbary male.

Asks CD what prompts dogs of all kinds to roll themselves in decayed animal matter; inherited habit or immediate gratification?

Cover containing some seeds mentioned in the letter to H. C. Watson, 28 May [1864], f.2 (S 4512).

Has been looking at separation of sexes in poplars.

Interested in reversion.

Does not understand all CD said on inheritance.

JDH now remembers that Origin was "published" some time before it was "distributed" and therefore appeared prior to his own essay [see also 2478].

Impossible to say whether some Dipterocarpaceae survived a cold period or have developed since.

Tells of shooting wood-pigeons that had in their crops acorns that did not grow locally.

[Fragment of letter glued to 2197.]

Pigeons in Egypt alight on trees rather than on the mud hovels of the natives [see Variation 1: 181].

[Two fragments glued to 2196.]

Prepared to think world infinitely old, but not that life originated with a single cell. Questions whether geological evidence supports gradual progress in organisation. HW thought scientific opinion during Vestiges debate was against this hypothesis. Argues that presence of same senses in lower animals and vertebrates does not imply descent; assumes resemblance is due to living in same world and thus having organs for the same purposes. Wants CD to know how others may see these questions.

Discusses arrangements for American edition of Variation.

Observations on apparently inherited instinct in a dog.

Extracts from botanical literature dealing with Dionaea, intercrossing, and sensitivity. [Bot. Ztg. (1833): 96; Thomas Nuttall, Genera of N. American plants (1818)].

Habits of ducks when sleeping on water.

Gives an extract from L. von Buch on the flora of the Canaries [Physikalische Beschreibung der Canarische Inseln (1825)].

Natural selection does not explain why animals of different groups in the same place often resemble each other.

Agassiz denounces Origin as "atheistical";

AG is currently reviewing it [in Am. J. Sci. 2d ser. 29 (1860): 153–84].

Jeffries Wyman praises it, though not a convert.

Thanks CD for the Origin. WW is not yet a convert but there is so much "of thought and of fact" in what CD has written that "it is not to be contradicted without careful selection of the ground and manner of the dissent".

Notes by HCW on the Origin dealing especially with divergence and convergence. Believes there is some natural tendency to converge into groups in opposition to divergence generated by natural selection.

Has read Origin and considers it one of the most valuable contributions to present-day natural history. Believes, however, that there are difficulties in the extensive generalisation that all taxonomic groups are related by descent. Does not understand how Genesis is to be read unless at least the human species was created independently of other animals. Cannot bring himself to the idea that man’s reasoning and moral sense could have been obtained from "irrational progenitors": the "Divine Image" is the unsurmountable distinction between man and brutes. [See 2644.]

Sends a copy of his Ventriculidae [of the Chalk (1848)]. This group, he feels, is well represented by CD’s plate of graduating species [Origin, ch. 4].

Answers to queries on expression with respect to Fuegians.

American edition of Origin. AG’s assessment of the book’s weak and strong points. Suggests Jeffries Wyman would be a useful source of facts and hints for CD.