[A] Intimate contact with members of the legal profession, both professionally and socially, for some years past has convinced me that the average lawyer still looks upon the ideas concerning crime and the criminal expressed by physicians of a forensic bent as totally unpractical and visionary. It would take only a brief visit to a criminal department of any modern, well-conducted hospital for the insane to convince any fair-minded individual that the physician handles the problem of the criminal not only in a more scientific and rational manner than does one not possessed of this particular training, but also in an eminently more practical manner, even so far as dollars and cents are concerned. I have frequently had patients come under my observation who for a great number of years had been oscillating between penal institutions and hospitals for the insane, in whom each additional sentence did not only fail to bring about the hoped-for reformation, but served to render them more depraved and criminally inclined, and who would have undoubtedly continued this checkered career throughout life, had not their true, unreformable nature been discovered and thus caused their permanent isolation from society, not by the jurist but by the physician. Should reformation ever take place in any of these individuals it is safe to assume that the one who was clear-visioned enough to discover the cause of their antisocial existence would likewise be competent enough to know when this cause has disappeared. The psychic mechanism of lying is the same both in the occasional and in the pathological liar--in both it is the expression of a wish--but the difference in the personalities of the two is a very decided one. On the one hand we have an individual who closely approaches normal man, while on the other hand one who is closely allied to the mentally diseased. The difference between the pathological liar and the habitual criminal, aside from the moral phase of lying, is perhaps but a very slight one, when we keep in mind that in both instances we are dealing with individuals who habitually resort to a form of reaction in their attempts at adjustment to reality which aims at a direct, simple, and least resistant means for gratification. In both we are dealing with a type of mental organization which is primarily incompetent to face reality in an adequate, socially acceptable manner, and therefore has to resort to constant deceit and lying, and in which those inhibitions determined by social, ethical, and æsthetic considerations are equally impotent. The marked egotistic trend which constantly comes to the surface in the habitual liar when he attempts to play the part of the hero and central figure in the most fantastic, bizarre, and impossible adventures is likewise frequently at the bottom of the escapades of the habitual criminal. The two traits are frequently, though by no means always, concomitant manifestations in the same individual.