[Delivered before the American Medical Association, Cleveland, June,1883] Mr. President and Members of the AssociationYour by-laws require of the Chairman of each. Section a paper on the “advances and discoveries1 of the past year, in the branches of science included in his Section. The somewhat undefined boundaries of the Section of “State Medicine,” and the purely practical nature of that part of its scientific domain which is defined, make the task of the Chairman, as declared by the by-law, not a little embarrassing. “ Discoveries” which influence and advance State medicine are made and claimed by workers nominally identified with other departments. Physiology, pathology and chemistry, as a rule, make the “discoveries,” and the right to report them in all their details and bearings belongs to other Sections. Practical sanitation, the principal aim of “ State medicine,” makes no “ discoveries.” It is not permitted to indulge even