The proficiency of the physician’s daily work, rather than the flash of genius which makes an occasional brilliant cure, is the final measure of the successful practitioner. His abilities will very largely depend upon the powers of observation and proficiency in details. No branch of medical research will enhance this more than the exhaustive study of physical diagnosis, for it bears a close and many-sided relationship to our symptomatology. In a sense therapeutics and physical diagnosis are mutually interdependent, the one helping to interpret and define the other. It therefore follows that the diagnosis should be as accurate as the fitting of the remedy. We must not only diagnose sickness in its larger sense but the comprehension of its picture will most certainly limit our grasp of the remedies from which a choice may be made. This is especially true of localized affections.