Pliny Earle was born in
Leicester, Massachusetts, on December 31, 1809. He graduated from the
University of Pennsylvania School of Medicine in 1837, then studied in the hospitals of Paris, and visited institutions for the insane in European countries. In 1840 he became
resident physician of the asylum for the insane (now known as
Friends Hospital) at
Frankford, Pennsylvania (now part of
Philadelphia), where he remained two years. From April 1844 till April 1849, he was physician to
Bloomingdale asylum, in New York. He immediately afterward visited insane hospitals in Europe. In 1853 he was appointed visiting physician to the New York City lunatic asylum, and in the same year delivered a course of lectures on mental disorders at the College of physicians and surgeons, New York. In 1863 he became professor of
materia medica and psychology at
Berkshire Medical College Pittsfield, Massachusetts, the first professorship of mental diseases ever established by a medical College in the United States. His lectures there were limited to the one course of 1864, owing to his appointment as superintendent and physician-in-chief of the state hospital for the insane in
Northampton, Massachusetts. He held this place until October 1885. He was elected as a member to the
American Philosophical Society in 1866. In 1871 he visited forty-six institutions for the insane in Europe. Dr. Earle was, so far as known, the first person that ever addressed an audience of the insane in any other than a religious discourse. His introduction of lectures on natural philosophy at the Frankford asylum, in the winter of 1840–1841, was the initiative to a system of combined instruction and entertainment, which has been widely adopted, and is now considered essential to the highest perfection of an institution for the insane. In the winter of 1866–1867, at the hospital in Northampton, he delivered a course of lectures on insanity before audiences in which the average number of insane persons was about 250. He was also a founder of the
American Medical Association, the
New York Academy of Medicine, the
Association of Medical Superintendents of American Institutions for the Insane, and the
New England Psychological Society. He died in Northampton on May 17, 1892. ==Publications==