During the sixteen years I have been at York 206 cases of acute mania have been admitted, inclusive of 29 relapsed cases occurring in sixteen individuals. Of these 206 cases, 171 have recovered, 8 have died during the attack and because of the mania, and 3 have died during the attack from intercurrent bodily diseases, 12 have been discharged relieved to the care of friends, 7 were transferred to other asylums, and 5 remain under care.