From:
Robert Schlagintweit
To:
Charles Robert Darwin
Date:
25 Sept 1857
Source of text:
DAR 177: 52 (fragile)
Summary:
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].
Contributor:
Darwin Correspondence Project