From:
Robert Elliot
To:
George Cupples
Date:
4 June 1869
Source of text:
DAR 86: A30–1, A62
Summary:
Proportion of sexes in (new-born) lambs equal, but males more likely to die.
Contributor:
Darwin Correspondence Project
Proportion of sexes in (new-born) lambs equal, but males more likely to die.
Proportion of sexes in lambs, before castration.
Number of lambs born not kept. Counted only at time of castration.
Proportion of sexes in cattle and rats.