Among the many curative agents that have been brought forward during the last few years none is attracting wider attention at the present time than the subject before us. Technically speaking suggestion is the active principle of all psycho-thera-therapeutic measures. Its discovery was the result of years of labor in the laboratories of the biologist and experimental psychologist. In the fullest sense it is therefore the legitimate child of science and not an outcast as some would try to make out. With such parentage it behooves us to look well into its claims and study the phenomena of its manifestations.
Like many other curative agents discovery of suggestion came about through close observation of pathologic conditions. Just as the study of bacteriology in its relation to pathology resulted in the formulation of the germ theory of disease and the subsequent discovery of antisepsis and serum therapy, so has the study