ABSTRACT
Cases can be quoted, not merely in the Middle Ages, from various countries, of men of wealth who organized large-scale robbery from the mere lust of acquisitiveness.1 And there are well-known instances of the criminal who lived a double life, of unimpeachable respectability, on one side of the city, of sordid crime on the other. One need not quote the c schizophrenia ' of the novelist in the style of Dr. Jekyll and Mr. Hyde ; there are real records
of actual criminals who had an established reputation and a prosperous business, who were yet in their unsuspected hours highwaymen, professional burglars, occasionally murderers.
