From:
Gilbert William Child
To:
Charles Robert Darwin
Date:
26 Jan [1870]
Source of text:
DAR 161: 141
Summary:
Sends 2d ed. of his Essays on physiological subjects (1869).
Contributor:
Darwin Correspondence Project
Sends 2d ed. of his Essays on physiological subjects (1869).
Criticises chapter on good effect of crossing in Variation: (1) does not accept that inbreeding alone results in degeneracy; (2) good effects of crossing exaggerated; (3) denies deleterious effects of close marriage in humans.