Because it anticipates so much that is thought to be recent in the treatment of certain affections this paragraph is interesting from many standpoints. Headache is typically one of the ills that in the modern time has often been cured by suggestion. Critias knew how much confidence Charmides had in Socrates, whom he looked upon as his master, and that, therefore, Socrates' declaration of his power to cure would probably be sufficient to relieve his disciple. Critias shrewdly suggests, however, that Socrates possessed a charm which he had learned from a distinguished royal physician. Cures in the modern time of any kind are likely to be much more effective if they come from a distance and, above all, if they have some connection with royalty, or have been tried with favorable results upon distinguished personages. ALEXANDRIAN PSYCHOTHERAPY When the center of interest in Greek medicine was transferred from Greece itself to Egypt, and the Alexandrian school represented what was best in medical thinking and investigation, we find evidence once more of wise physicians realizing the influence of the mind on the body and of what seemed to physicians of lesser experience the cure of physical ills by mental means. One of the most distinguished physicians of all time is Erasistratos, who, with Herophilus, made the fame of the great medical school at Alexandria, {12} the first university medical school in the world's history. Both practiced dissection with assiduity, and, while it is Herophilus' name that is associated with the _torcular_ within the skull, and it was he who gave the name _calamus scriptorius_ to certain appearances in the fourth ventricle, and otherwise stamped his personality on the study of the brain, it is to Erasistratos that we have to turn for a typical example of the mental physician. Erasistratos, about 300 B. C, recognized the valves of the heart, gave them the names tricuspid and sigmoid, and, like his great colleague, studied particularly the nervous system. He seems to have distinguished the nerves of motion from those of sensation, recognized their different functions and the different directions in which they carried impulses, and thought the brain the most important organ in the body.