Asks to borrow C. L. Brehm’s book [Handbuch der Naturgeschichte aller Vögel Deutschlands (1831)]. Wants to see how far Brehm went in splitting species.
Took finches from Madeira to British Museum.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Asks to borrow C. L. Brehm’s book [Handbuch der Naturgeschichte aller Vögel Deutschlands (1831)]. Wants to see how far Brehm went in splitting species.
Took finches from Madeira to British Museum.
Is collecting only pigeons that differ in proportions, so declines some birds offered by WBT.
Agrees that Lyell’s letters shed no new light on extensions issue. Continental extensions: opposes their being hypothesised all over world.
Commonality of alpine plants damns both extension and migration.
Reports on results of forcing and other attempts to produce variations in plants. Asks for some seeds.
Is correcting his Linnean Society paper ["On the action of sea-water", Collected papers 1: 264–71].
Antarctic plants most difficult to account for on any theory. Lyell’s iceberg transportal of seeds.
Are there more representative species of American origin in Tristan da Cunha than in Kerguelen land?
Inquires about pigeons seen at Anerley show.
Thanks EN for copying a MS [on "Geographical distribution" (Natural selection, pp. 534–66)]. Increases his payment and offers EN work in the future.
Asks whether offspring of cross between African pig and common pig are fertile. Are Lord Rowland Hill’s African pigs domesticated?
Mentions pigeons’ skeletons.
Is working at a book on variation [Natural selection].
Instructions for delivering pigeons to Down.
Has Scandaroons for WBT.
Rarity of intermediate varieties.
Variability of introduced plants.
Ranges of plants common to Europe and U. S.
Asks about strains of Herefordshire cattle.
Will forward the Scandaroons.
Is crossing all his pigeons to see which are fertile.
Hopes WBT’s work on fowls’ skulls is not forestalled by T. C. Eyton who also has a grand collection of skeletons.
Asks whether number of incisors varies in domestic pigs. Is testing views of J. M. Bechstein.
Comments on TCE’s book [Herd book of Hereford cattle (1846–59)]. Mentions variations in the breed.
Will quote TCE on geese [Mag. Nat. Hist. 4 (1840): 90–2].
Problem of geographical distribution; his seed-salting experiments. Asks about distribution of seeds to islands. Do water-birds ever have dirty feet?
Could Eyton’s gamekeepers collect owl and hawk pellets? Asks for dace stomachs and contents.
Asks for cats’ skeletons.
Has received [C. L.?] Brehm’s work [unspecified]. Will return it in two or three weeks.
Is flattered by a proposal that he undertake some reviewing work, but has many years’ work in prospect on his present book on species and varieties.