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From Edward Blyth   21 April 1855

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Summary

Indigenous domestic animals of the New World.

Relationship of Newfoundland and Esquimo dogs to the wolf. Dogs like the Esquimo occur in Tibet and Siberia. Indian pariah dogs and jackals occasionally interbreed.

Describes domestic cats of India; reports cases of their interbreeding with wild cats. Wild cats are tamed for hunting.

Races of silkworm in India are crossed [see 1690].

Domesticated plants, fish, and birds of India.

Comments on local races and species of crows; it is impossible to trace a line of demarcation between races and species.

Variation in the ability of hybrids to propagate.

Indian cattle breeds; differences between Bos indicus and Bos taurus.

Is not satisfied that aboriginally wild species of horse and ass exist.

Believes all fancy breeds of pigeon originated in the East. Wild ancestors of pigeons, ducks, geese, and fowls. Interbreeding of wild species of pheasant.

[CD’s notes are an abstract of this letter.]

Author:  Edward Blyth
Addressee:  Charles Robert Darwin
Date:  21 Apr 1855
Classmark:  DAR 98: A57–A68
Letter no:  DCP-LETT-1670

Matches: 2 hits

  • … Blyth, 4 August 1855 , n.  22. The brown crayon numbers that …
  • … western Africa. 2 vols. Vols. 22 and 23 of Jardine, William, …

To Asa Gray   25 April [1855]

Summary

Is collecting facts on variation; questions AG on the alpine flora of the U. S.

Sends a list of plants from AG’s Manual of botany [1848] and asks him to append the ranges of the species.

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  25 Apr [1855]
Classmark:  Archives of the Gray Herbarium, Harvard University (1)
Letter no:  DCP-LETT-1674

Matches: 2 hits

  • … the letter from Asa Gray, 22 May 1855 , and is in DAR 46.2 ( …
  • … c. — I see that there are 22 species common to the White M …