From H. E. Darwin [30 March 1870]1
I can swear to Mildred’s2 having the knots in the elevated corners of her eyebrows. The wrinkles were hardly to be seen. The corners of her mouth down. This was before crying, and when she cried the look ceased.3
Describes crying in an infant.
Please cite as
Darwin Correspondence Project, “Letter no. 7153,” accessed on 30 April 2016, http://www.darwinproject.ac.uk/DCP-LETT-7153