In the first report1 under this general title conservative and radical measures for the treatment of ulcer were evaluated according to the results obtained from each. Indications were also suggested for their use. In the course of this study it was found that ulcers which were years old and which had been refractory to many other methods of treatment healed with striking rapidity when strapped with elastic adhesive plaster—a point previously noted by A. Dickson Wright, of England. Thus in this series three ulcers of an average size of 24.7 sq. cm., all of which had failed to heal under various remedies in an average time of nine and six-tenths years, actually healed under elastic adhesive plaster in an average time of fifty-one and three-tenths days. Results such as these stimulated interest in an attempt to throw light on the mode of action of elastic adhesive plaster, a dressing