RECORD: Darwin, C. R. 1855. Abstract of letter from Edward Blyth dated 7 September 1855. CUL-DAR203.4. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2023. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR203 contains abstracts of letters from Edward Blyth. Darwin used Blyth's information in Natural selection, Origin, and Variation.

"Blyth, Edward, 1810-73. Zoologist. Neglected his druggist business at Tooting in favour of natural history and got into financial difficulties. LL2:315. CD discussed evolution with before Origin. Biographical note on: ML1:62. Wrote under pseudonyms "Zoophilus" and "Z". Helped greatly with Variation. 1835, 1837 His early views on causes reminiscent of natural selection maintaining fixity of species Mag. Nat. Hist. 8, 1835, pp. 40-53 and 1837 n.s. 1: pp. 1-9. L." (Paul van Helvert & John van Wyhe, Darwin: A Companion, 2021.)


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Abstract of Mr Blyth Sept. 8th / 55/ (2)

Remarks that probably it will never be known what are species of wolves, that Indian, Thibetan, European & arctic wolves.

— So with the great flying Squirrels.

Refers to Cuculus canoroides of E. India arch. so called by Dr. S. Müller & Temminck, yet indistinguishable from C. canorous —

Gives cases of 2 squirrels, agreeing exactly in size & proportion & approximating a good deal in colour, but with different habits & voices.—

3 Representative close species of Mustela in Himmalaya, Malayan & Neilgherries flavigula.—

In Pigeons many cases of close affined species; both of the C. livia group; & C. palumbus here its double in middle Asia by Himmalaya — The C. (Palumbus) Elphinstonei of the Nigheries has is the its representative on mountains of Ceylon.

Treron phænicoptera & chlorigaster certainly interbred when they meet: as do Coracias indica & affinis when they meet.—

Turtur agrees after instance of "clusters of species, varieties or races."—

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Thinks C. livia & intermedia case like the above; hard to say what to call it — wd probably interbreed, especially in domestication—

(p. 4) various references to wild cattle, might come in valuable; some domesticated.— Bali tame cattle is B. Sondaicus.— It is evident far more has been tamed than appears.

cases of Jackal varying in colour. Black, smoky black & bright rufus; but Jackals interbred with Pariah dogs & their offspring are fertile hence possibly the colours; the hybrids intermedial in tail, varying from between smooth thick tail of the Pariah & the brest of the Jackal — a litter for 1/2 bred Jackal bitch with English terrier, the more dog-like young were Jackal-like in habits, & vice versâ.—

Read the "Naturalists Library article on Cats" the blue Spanish Cat is then called the Chartreuse Cat.

Dieffenbach says wild cats in N. Zealand assume streaks grey colour of wild cat (vol II p. 185) In Sardinia they become according to Azara ? black, like rabbit in Falklands.


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 11 October, 2023