CD is sending two pairs of Persian fowl, from Hon. C. Murray.

Thanks WBT for various offers: a drake, a young silk fowl, a rumpless chick.

The German pouters are not old-fashioned ones but fancy birds, probably crosses since they do not breed true.

Has some fowls from Sir James Brooke, which WBT might like to display at Zoological Society.

Sends news of his family, Sulivan, and FitzRoy.

Helix pomatia is quite healthy after 20 days’ submersion in salt water.

On peas, the evidence is on WDF’s side, but CD cannot see how they can avoid being crossed.

He is working hard, wishes he "could set less value on the bauble fame"; would work as hard, but with less gusto, if he knew his book would be published forever anonymously.

Sends cheque for subscription [£20].

Urges AG to generalise from his observations on the flora of the northern U. S.

Expected to find separation of sexes in trees because he believes all living beings require an occasional cross, and none is perpetually self-fertilising. The multitude of flowers of a tree would be an obstacle to cross-fertilisation unless the sexes tended to be separate.

The Leguminosae are CD’s greatest opposers; he cannot find that garden varieties ever cross. Could AG inquire of intelligent nurserymen on the subject?

Thanks AG for information on protean genera; much wants to know whether their great variability is due to their conditions of existence or is innate in them at all times and places.

Reports that he fertilised a single pale red carnation with the pollen of a crimson Spanish pink, and a Spanish pink with the pollen of the same carnation. He got seed from both crosses and raised many seedlings. There was no difference between the seedlings from reciprocal crosses, not one plant set a single seed.

Asks RP’s help in procuring a specimen of a real Irish rabbit, L. veomicule [Lepus vermicula]?.

Separation of sexes in trees [U. S.].

Do plants offer positive evidence for "continuous land" theory?

Protean genera.

Ranges of species in large vs small genera: Asa Gray’s compilation fits CD’s expectation.

CD studies seedling mortality in his weed garden.

JDH’s work on Indian flora.

Asks whether Crustacea from temperate parts of the Southern Hemisphere are more strongly analogous to those in same latitudes of the Northern Hemisphere than are Arctic to Antarctic Crustacea.

Discusses astonishing finds of mammalian and reptilian remains in Purbeck beds; notes reactions of Lyell.

Has doubts about Richard Owen’s recent classification of mammals [J. Proc. Linn. Soc. Lond. (Zool.) 2 (1858): 1–37].

Works away [on Natural selection].

Asa Gray has given valuable assistance.

Independence of variation from climate shown by several plant genera; CD asks for confirmation.

Progressing with book [Natural selection].

Recommendations of books of general interest [for the Royal Society library]. These include [Louis] Agassiz’s works, [William] McGillivray’s [History of] British birds, and David Low’s [On the domesticated animals of the British Islands].

Comments on current candidates for the Royal Society.

Thanks JDH for response on variation. Studying variations that seem correlated with environment, e.g., north vs south, ascending mountains.

CD’s weed garden: observations on slugs killing seedlings.

Seed-salting. One-seventh of the plants of any country could be transported 924 miles by sea and would germinate.

CD returns a letter from Wollaston.

Although opposed to the Forbesian doctrine [of continental extension] as a general rule, CD would have no objection to its being proved in some cases. Does not think Wollaston has proved it; nor can anyone until more is known about the means of distribution of insects – but the identity of the two faunas is certainly interesting.

His health is very poor and his "everlasting species-Book" quite overwhelms him with work. It is beyond his powers, but he hopes to live to finish it.

Thanks for pigeon.

Are there Shetland birds chequered with black marks, as Carl Julian Graba states are in Faeroes [Reise nach Färö (1830)] and Col. King in the Hebrides?

Asks PHG to conduct an experiment to see if young littoral molluscs will cling to a duck’s foot – CD seeks to explain distribution of molluscs without adopting E. Forbes’s [continental extension] theory.

Curative power of hydropathy.

General hairiness of alpine plants questioned: direct environmental effect.

CD has long felt JDH is too hard on bad observers.

His impressions of the hydropathic establishment and E. W. Lane. Is convinced the only thing for "chronic cases" is the water-cure.

Asks if WDF knows of any breed of pig that originated or was modified by a cross with a Chinese or Neapolitan pig, and whether the crossbreed bred true.

Reports long preparation of work on how species and varieties differ. Agreement with Wallace’s conclusions as reported in Annals and Magazine of Natural History and in his letter to CD of 10 0ct [1856]. On distinction between domestic varieties and those in "a state of nature".

On mating of jaguars and leopards, the breeding of poultry, pigeons, etc.

Requests help for his experimenting on means of distribution of organic beings on oceanic islands.