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

Polymorphic genera.

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 measurements of bees’ cells. Describes modification in structure of Melipona hive. Notes importance of natural selection.

Gives CD references to papers on eyes of lower animals.

Discusses measurements of bees’ cells.

Discusses arrangements for American edition of Variation.

Observations on apparently inherited instinct in a dog.

Must prepare new edition of Origin.

Discusses structure of beehives. Mentions writings of Chauncey Wright on bees’ cells ["Remarks on the architecture of bees", Proc. Am. Acad. Arts & Sci. 4 (1857–60): 432–3].

Discusses measurements of bees’ cells.

Thanks for information about the weight of water.

Describes experiments on Drosera.

Glacial action in the Andes.

Origin of Chilean sheep.

Varieties of S. American horses.

Facts and inferences relating to different varieties of sweetpeas.

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".

High praise and detailed comments on JDH’s introductory essay to Flora Tasmaniae, which CD has now finished reading.

Disagrees on power of transoceanic migration. Advocates glacial transport of plants.

CD’s response to reviews of Origin in Saturday Review [8 (1859): 775–6] and John Lindley’s in Gardeners’ Chronicle [but see 2651].

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.