Certain attributes are close to common to all of true criminals. Their impressionability will be below par; their nervous sensibilities ox-like, leaving them comparatively indifferent to pain they inflict or by which they are afflicted; expressions of their sexual desires are gross, frequently perverted, and not uncommonly masochistic in one or another degree and form; their mental concepts are pronouncedly ego-centric; their spirituality is such as clings to the main chance just because it is the main chance, not because they treasure it as the fount on which to draw for inspiration to better things; their word at the best is but a lame duck; their loyalty is huckstered from bargain counters; and their honesty of purpose is adumbrated in the fact that they stand many times convicted felons, albeit many hands and hearts had again and again tried to steer them clear of criminal cesspools, beginning with their tempest-tossed parents, and ending with the spurned "screw": but the mastering motive for their crimes will usually be singular to the individual, and trace to forebears who ran their course on foreign soil. Correctional institutions contain few of the offspring of Pilgrim stock. At any rate, the singular-composite psychology, calls for the singular-composite psychologist; meaning that he must possess singular skill with which to unfold the cardinal flaws that cause the high criminal blood pressure of his subject, as well as ability to uncover the sum total of objective impulsion that adds to that pressure. Shall he allow a fetich to sidetrack him from comprehensive research, and logical recommendations based on such research, he will surely foozle. Because the two-fold chore involved has been intrusted mainly to mental examiners obsessed with the near mania to make the purely psychological case, regardless of the comprehensive case, it is that the very word "psychology" is looked at askance by many who keenly want to see whole. Searching the psychology of a given criminal necessarily involves digging to understructure from which he is impelled to illegal acts; particularly, to the subconscious impulses that sway him; but having taken cognizance of those impulses, remedial measures must further prescribe for him agreeably with the role he will be best fitted to assume as a reclaimed social unit. Palpably, therefore, his all-around schooling must be individual to a degree, yet comprehend the social exactions that will be upon him in free life. No matter what the prison régime under which the subject is schooled, it should function substantially as follows: (a) As a distinctive plant, for a certain grade of offenders, to a distinctive end, as for example: for distinctively occupational results, if it is a trades-scholastic-military house of correction; and for distinctively agricultural results if it is an agricultural plant. Little, if any, crossing of the concentrated idea should obtain.