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Letter 2142

Schlagintweit, Robert to Darwin, C. R.

25 Sept 1857

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    Gives CD further details of the fertility of the offspring from cross of a yak and Indian cow, the so-called chooboos, whose fertility he has traced to the seventh generation [see Natural selection, pp. 437–8].


192, Jermyn Street, | London,

25th Sept. | 1857

My dear Sir,

It gave us great pleasure to receive your kind note of the 20th, and as I see that you kindly took interest in the communications, made by us lately in Dublin, I am very happy, to give you, as desired, some more particulars of the offspring of the Yak, the Chooboo, whom we really found fertile as far as to the 7th generation, a statement which is correctly contained in the Athenæum.

As we were very anxious ourselves to have decided the question about the fertility of the Chooboos, we tried to collect as much information as possible; in all instances we met with fertile Chooboos, moreover not unfrequently even with castrated one's.

I shall be most happy to give you more details, as soon as we shall have packed out & worked up our manuscripts & collections

Believe me to be | dear Sir | Yours truly | Robert Schlagintweit

    Footnotes Add

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    f1 2142.f1
    Robert and Hermann Rudolph Alfred Schlagintweit had made several reports on the results of their expedition to India and Tibet, made with their brother Adolphe, at the British Association for the Advancement of Science meeting in Dublin, 26 August to 6 September 1857.
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    f2 2142.f2
    The Athenæum, 12 September 1857, p. 1156, gave a description of Hermann and Robert Schlagintweit's ‘Notes on some of the animals of Tibet and India’ (Schlagintweit and Schlagintweit 1857). See also CD's note, above.
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    f3 2142.f3
    Hermann and Robert Schlagintweit returned from their expedition with a vast collection of geological, botanical, and zoological specimens and ethnographic materials. The results of their travels were published in H. R. A. Schlagintweit et al. 1861–6.
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    f4 2142.f4
    This note is with the letter in DAR 177 (fragile). CD has marked it with ‘17’ in brown crayon. The number is that of his portfolio of notes on hybridism.
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