Joseph, "The Semi-Insane and the Semi-Responsible," cited, 239.
Gregariousness, instinct of, in man, 47-48, 50.

Hatred, punishment actuated by, 12-19;
killings traceable to, 83.
Heredity, view of man as the product of environment and, 34-36;
relation of environment and, 37-40;
problem of future, to adjust environment to, 41-43, 277-278;
responsibility of, for the criminal, 57-65;
child criminal as result of, 78-79;
accounting for accused men's actions by, 126-129;
effects of, 201-202;
laws of, not sufficiently known to justify sterilization, 237-238.
Homicide, the crime of, 81-87.

Ignorance, disease due to, 252.
Illinois, operation of parole law in, 267
Incest, crime of, 89-90.
Indeterminate sentence, the, 268-271, 278.
Industrialism and crime, 76, 203-212.
Insane, restraint of, a measure of self-protection, 26;
treatment of, 144;
in prisons, 184-185;
allowances for, in criminal codes, 187-190;
legal tests of, not logical or humane, 190-192.
Instinct, human action largely governed by, 44-54;
stress placed on, as motive power of life, 81-83.
Intelligence tests, use of, 185-186.
Intolerance, a persisting source of evil, 228-229.
Isolation of the subnormal, 233-249.

Jealousy, crime traceable to, 84-85.
Jesus, doctrine of vengeance repudiated by, 13-14.
Judges, attitude of, 282-283.
Jukes family, study of the, 244-248;
wrong deductions from, 248-249.
Juries, attitude of, toward women criminals, 72, 73, 85;
decision as to sanity of defendants left to, 144;
abolition of, proposed by some, 282;
better chances for the common man with, 283.
Juvenile Courts, 59, 139.
Juvenile Prison, the, 59.

Kallikak family, results of environment rather than heredity shown by, 249.
Kidnapping, death penalty sometimes advocated for, 156.
Killings. _See_ Homicide.
Kleptomania, a form of insanity, 191-192.

Labor, manual, and its poor pay, 69;
training for manual, in schools, 69-70.
Law, a codification of a custom, 8;
and its infraction, 110-114;
the criminal and the, 116-129;
repealing of, 130-133;
shortening and simplification of codes of, 278.
Laws, feeling against so-called property, 112.
Legislation, restrictive, resulting from World War, 220.
Legislatures, fixing of punishments by, 155-156.
Lockouts, crimes resulting from, 102.
Lombroso, C, discarded theory of, 172.
Luck, element of, as affecting man, 255-262.

Man, origin and development of, like that of other animal l