BY THE year 1884, when William Osler had completed exactly one-half his life span of 70 years, the lines of his medical development had become established. His philosophic viewpoints, his special interests, his systematic habits of work, his ability to think constructively and penetratingly, and to set forth the results in an arresting style, were already bringing him a well deserved reputation on both sides of the Atlantic. It is not surprising, then, that when the chair of clinical medicine at the University of Pennsylvania was vacated by the promotion of William Pepper to the professorship of medicine, Osler should have been chosen as his successor.
The circumstances of his selection were about as follows: A name had been proposed by the faculty to the board of trustees after what seemed to some an insufficient consideration of the subject. According to Minis Hays, the matter came up in a conversation