Encloses reviews by Asa Gray and Bronn. Comments on Bronn review. Mentions review by Wollaston.
Comments on paper by W. H. Harvey in Gardeners’ Chronicle [(1860): 145–6]. Discusses Harvey’s belief in the permanence of monsters.
Discusses CL’s objection that still-living primitive forms failed to develop.
The survival of Lepidosiren and other primitive types of fish and mammals.