In the 1880s, Dr. Allan M. Hamilton developed a series of illustrated plates that highlighted his posited theory on the physiognomy of insanity. Today, Dr. Hamilton’s work is largely disregarded as “quackery.”
If you’re interested in reading Dr. Hamilton’s entire book, then click here to check it out. It is a public domain book available on the non-profit website, Internet Archive.
Hamilton, A. M. (1883). Types of Insanity an Illustrated Guide in the Physical Diagnosis of Mental Disease. New York, NY: William Wood & Co.