H. is not insane in the ordinary sense, but he is one of those paranoid persons we spoke of previously. Turn to L., a true case of mental disease, a paranoid whose career strangely resembles some of the great historic paranoids, for it must be remembered that man has been imposed upon by those who deceived themselves, who fully believed the strange and incredible things they succeeded in making credible to others. The fantastic paranoid is made up of the same materials as the rest of us, except that his ego feeling is without insight, and his suspicion grows and grows until it reaches the delusion of persecution. L. was a bright boy, always conceited and given to non-social acts. Thus he never would play with the other boys unless he were given the leading role, and he could not bear to hear others praised or to praise them! Parenthetically the role that jealousy plays in the conduct of men and women needs exposition, and I recommend that some Ph. D. merit his degree by a thesis on this subject. When he was a little older he got the notion that hats were bad for the hair, and being proud of his own thick black mop, he went without a hat for over a year, despite the tears and protestations of his family and the ridicule of his friends. There is no one so ready to die for a cause, good or bad, as the paranoid. He entered the medical school, and to this day there is none of his classmates who has forgotten him. Proud, even haughty, with only one or two intimates, he studied hard and did very good work. Now and then he astonished the class by taking direct issue with some professor, disputing a theory or a fact with the air of an authority and proposing some other idea, logically developed but foolishly based, as if his training were sufficient. It is characteristic of all paranoid philosophy and schemes that they despise real experimentation, that they start with some postulate that has no basis in work done and go on with a minute hyper-logic that deceives the unsophisticated. Though L. was "bright," there were better men in his class, and they received the honors. L. was deeply offended at this and claimed to his own friends that the professors were down on him, especially a certain professor of medicine, who, so L. intimated, was afraid that L.'s theories would displace his own and so was interested to keep him down. This feeling was intensified when he came up for the examinations to a certain famous hospital and was turned down. The real reason for this failure was his unpopularity with his fellow students, for they let it be known to the examiners that L. would undoubtedly be hard to get along with, and it was part of the policy of the hospital to consider the personality of an applicant as well as his ability.