Closely connected with these methods of thought was the doctrine of signatures.
"History of the Warfare of Science with Theology in Christendom" by Andrew Dickson White
Signatures, doctrine of, 218.
"Folk-lore of Shakespeare" by Thomas Firminger Thiselton-Dyer
The doctrine of signatures played a large role in the treatment of erysipelas, and, strange as it may seem, still survives.
"Psychotherapy" by James J. Walsh
His doctrine of signatures was very curious and most absurd.
"The Browning Cyclopædia" by Edward Berdoe
This notion, which largely affected the early history of medicine, is known as the doctrine of signatures.
"Bible Studies" by Joseph M. Wheeler