Criminal PsychologyA MANUAL FOR JUDGES, PRACTITIONERS, AND STUDENTSBY HANS GROSS, J. U. D. _Professor of Criminal Law at the University of Graz, Austria. Formerly Magistrate of the Criminal Court at Czernovitz, Austria_Translated from the Fourth German Edition BY HORACE M. KALLEN, PH. D. _Assistant and Lecturer in Philosophy in Harvard University_WITH AN INTRODUCTION BY JOSEPH JASTROW, PH.D. PROFESSOR OF PSYCHOLOGY IN THE UNIVERSITY OF WISCONSINPUBLICATION NO. 13: PATTERSON SMITH REPRINT SERIES IN CRIMINOLOGY, LAW ENFORCEMENT, AND SOCIAL PROBLEMS _Montclair, New Jersey_GENERAL INTRODUCTION TO THE MODERN CRIMINAL SCIENCE SERIES.AT the National Conference of Criminal Law and Criminology, held