7. =Criminology.= By RAFFAELE GAROFALO, late President of the Court of Appeals of Naples. Translated from the First Italian and the Fifth French edition, by ROBERT W. MILLAR, Esq., of Chicago, Professor in Northwestern University Law School. With an Introduction by E. RAY STEVENS, Judge of the Circuit Court, Madison, Wis. 8. =Criminality and Economic Conditions.= By W. A. BONGER, Doctor in Law of the University of Amsterdam. Translated from the French by HENRY P. HORTON, M.A., of Ithaca, N. Y. With an American Preface by the Author, and an Editorial Preface by EDWARD LINDSEY, of the Warren, Pa., Bar, and an Introduction by FRANK H. NORCROSS, Justice of the Supreme Court of Nevada. 9. =Criminal Sociology.= By ENRICO FERRI, of the Roman Bar, and Professor of Criminal Law and Procedure in the University of Rome, Editor of the “Archives of Psychiatry and Penal Sciences,” the “Positivist School in Penal Theory and Practice,” etc. Translated from the Fourth Italian and Second French edition, by JOSEPH I. KELLY, late Lecturer on Roman Law in Northwestern University, and Dean of the Faculty of Law in the University of Louisiana, and JOHN LISLE, late of the Philadelphia Bar. With an American Preface by the Author, an Editorial Preface by WILLIAM W. SMITHERS, of the Philadelphia Bar, and Introductions by CHARLES A. ELLWOOD, Professor of Sociology in the University of Missouri, and QUINCY A. MYERS, formerly Chief Justice of the Supreme Court of Indiana. THE MODERN CRIMINAL SCIENCE SERIES _Published under the Auspices of_ THE AMERICAN INSTITUTE OF CRIMINAL LAW AND CRIMINOLOGY Criminal Psychology A MANUAL FOR JUDGES, PRACTITIONERS, AND STUDENTS BY 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 WISCONSIN BOSTON LITTLE, BROWN, AND COMPANY 1918 _Copyright, 1911_, BY LITTLE, BROWN, AND COMPANY. _All rights reserved_ GENERAL INTRODUCTION TO THE MODERN CRIMINAL SCIENCE SERIES. At the National Conference of Criminal Law and Criminology, held in Chicago, at Northwestern University, in June, 1909, the American Institute of Criminal Law and Criminology was organized; and, as a part of its work, the following resolution was passed: