From:
Robert Lawson (Lawson) Tait
To:
Charles Robert Darwin
Date:
27 Mar [1875]
Source of text:
DAR 178: 5
Summary:
Is preparing a paper on the umbilical cord ["On the anatomy of the umbilical cord", Proc. R. Soc. Lond. 23 (1875): 498–501; 24 (1876): 417–40] of which he sends a preliminary note [missing]. Believes spiral growth of the umbilical cord is important evidence of the descent of man; speculates on spiral growth in general.
Contributor:
Darwin Correspondence Project