From:
Charles Robert Darwin
To:
James Crichton-Browne
Date:
20 Feb [1871]
Source of text:
DAR 143: 334
Summary:
JC-B’s MS most useful.
P. Gratiolet’s observations on contraction and dilation of pupils of eye of a person in extreme terror. Has JC-B ever observed this? Expression has been his hobby-horse for 30 years.
Contributor:
Darwin Correspondence Project