Theatre, St. Thomas's Hospital, Wednesday Evening, October 1, 1823. At half-past seven this theatre was crowded in every part, upwards of four hundred students of the most respectable appearance being present.
About eight o'clock, Sir Astley Cooper arrived, and was received with the most enthusiastic applause; which having ceased, this distinguished surgeon commenced his discourse by observing,—That, while it is the province of the physician to attend to internal disease, it is the duty of the Surgeon to attend to those that are external; to perform operations for the removal of diseased parts; and to know how to regulate the system by the use of medicine, when local diseases are produced by constitutional derangement. Surgery is usually divided into the principles and practice. The first are learned from observations on the living when diseased, by dissection of the dead, and by experiments upon living animals. Our deductions from these sources