Summary

Regrets he cannot help JL; the point [unspecified] was always a trouble to CD also.

Has been to a poultry show.

Asks for the return of a lens.

Summary

Cancelled: appears in 1917.

Summary

His laughers are well, and he has heard them emit an odd note.

Thinks there is an extra vertebra in the neck of the Scandaroon, but is not certain and may have blundered.

Summary

Asks for information on geographical distribution of ascidians; are any closely allied species or genera found in north and south temperate zones that do not have representatives in the tropics?

Answers some questions on [cirripede] antennae.

If THH ever sees a tree washed ashore, will he observe whether any earth is embedded between roots?

Summary

Requests information on ranges of echinoderms for his essay on variation [Natural selection]. Are there genera with representative species in northern and southern seas, but none in tropics?

Summary

Discusses theory of submerged continental extensions. Objects that if it is applied to one island, it must be applied to all. Admits that some volcanoes may have been associated with subsidence, in contrast to his former view. Cites evidence from S. American Cordillera. Doubts that elevation associated with volcanoes is merely local, and that great ocean areas are necessarily sinking.

Says he will make his essay [on species] as complete as possible and will discuss CL’s Principles.

Summary

CD cannot swallow continental extensions. Has written to Lyell giving a lengthy criticism of the concept [see 1910] and has asked Lyell to forward the letter to JDH.

Perhaps Aristolochia and Viscum are protandrous.

Summary

Troubled by JDH’s connection between Antarctic island flora and Fuegia, which CD sees as part of a general relation to southern circumpolar flora. Encloses list [not found] of plants from Tristan d’Acunha.

Summary

Cancelled: appears in 1920.

Summary

Thanks CL for loan of [Matthew Fontaine?] Maury’s map.

Discusses possibility of submerged continental extension including Madeira, Canaries, and Azores.

Mentions icebergs as carriers of European plants.

Hooker’s work on Antarctic flora.

Comments on coolness of tropics in glacial period and consequent migrations. Hooker’s views on this.

Summary

CD writing species sketch; must cite cases favouring multiple creations.

Requests details on species JDH listed as common to Chile and New Zealand. Notes their genera are mundane.

Summary

Will use Boltenia case cautiously, if at all.

Polyzoa.

Bisexualism in Flustra and Ascidia.

Summary

Has found no case of Huxley’s eternal hermaphrodites.

Cruelty and waste in nature.

CD does not believe in hybrids.

One proven case of multiple creations would smash CD’s theory.

Asks JDH to read MS on alpine and Arctic distribution.

Lyell’s "conversion" to mutability.

Summary

Asks whether the blind cave animals described by B. Silliman Jr [Am. J. Sci. 2d ser. 11 (1851): 332–9] belong to genera found only on the American continent.

On geographical distribution of Crustacea, CD asks whether northern genera sent species to the Southern Hemisphere or did southern genera send species north?

Does he know of any author who has described fossil trees in South Shetland Islands?

Summary

Asks whether Allegheny Mountains are sufficiently continuous so that plants could travel from north to south along them.

Hopes AG’s work on geographical distribution is progressing, as he has questions on plants common to Europe which do not range up to Arctic.

Are intermediate varieties less numerous in individuals than the varieties they connect?

Summary

Recommends W. B. Carpenter’s paper on Foraminifera, pt 2, be published in Philosophical Transactions [R. Soc. Lond. 146 (1856): 547–69].

Summary

Thanks for information about variability in shells.

Comments on Harvey’s Seaside book [1849].

"I am growing as bad as the worst about species and hardly have a vestige of belief in the permanence of species left in me".

Summary

Multiple creations.

Necessity for crossing in plants and animals: JDH to take up the subject; explains separate sexes in trees.

Continental extensions.

Summary

CD’s predicament with continental extensions: they would remove argument for multiple creations, yet he opposes the doctrine. Lyell will not express an opinion on this.

Lyell fears mutability would lead to more specific names.

Encloses copy of letters to Lyell [1910 and 1917].

Summary

Tristan da Cunha flora.

Aquatic plants.

Density and diversity of plants in small plots in Kent, Keeling Islands, and Himalayas.