Sir William Osler was not just a famous physician at Johns Hopkins. He was one of the original four members of the faculty of the Johns Hopkins School of Medicine at its founding (the others being Drs. Halsted, Welch and Kelley). Osler was the chief and, along with the others, revolutionized the teaching of medicine. It was these four doctors who got medical training away from an apprenticeship program and into rigourous academic training with practical work with the patients in the hospital, to which the med. school was attached. They also developed the system of internship and residency. Osler was the author of a textbook which was a compendium of medical scholarship and practice at the time. Halstead, who taught and practiced surgery, was the inventor of many surgical procedures, most notably the radical mastectomy which, although a cruel procedure, saved many women from death by breast cancer. Kelley was a gynecologist and surgeon and the inventor of the Kelley clamp, among other things. Welch was the pathologist; JHU Med school library is named for him.
