The mental condition of the cases committed to the Matteawan State Hospital is of great importance in a consideration of the relation of crime to the psychoses. Of 2,595 cases admitted between 1875 and 1907 heredity or congenital defects were shown as etiological factors in eight per cent of the total number. Of 793 admissions in which more definite and reliable information was available, hereditary factors were noted in either the paternal or maternal branches of the family or both in thirty-five per cent of the cases. In addition to this, heredity was found in collateral branches in sixteen per cent. Heredity of some kind was thus shown in 51.3 per cent of the whole number studied. Of 3,247 admissions, 46.9 per cent were noted as being intemperate in their habits. An analysis of 576 unconvicted cases in 1912[83] showed that 41.4 per cent were diagnosed as dementia praecox, 21.1 per cent as alcoholic psychoses, 6.9 per cent as paranoid conditions, 4.1 per cent as epileptic psychoses, 7.1 per cent as imbecility with excitements, 2.9 per cent as manic-depressive psychoses, 2.4 per cent as general paresis, 3.1 per cent as undifferentiated depressions, 6.7 per cent as constitutional inferiority and 2.2 per cent as not insane. An analysis of 925 cases committed as insane and charged with criminal offenses attributable to their mental condition shows the more common crimes as follows:—assault (all forms), 26.2 per cent, burglary, 7.8, grand larceny, 8.2, petit larceny, 1, manslaughter, 1.4, murder, 18.9, homicide (total), 22.4, rape, 3.2, and vagrancy, 4.2 per cent.