Abstract
I SHOULD like first to express my sincere appreciation of this singular honor bestowed on me by the officers and members of the Committee on Publications of the Massachusetts Medical Society in their invitation to give this lecture, and in thus admitting me to the company of a long list of distinguished clinicians and scientists who have been similarly honored in the past. It made me feel most humble indeed after perusing the list of my predecessors in the lectureship, and even more so after reading some of the essays that they delivered at these meetings. The subject matter and . . .