At the end of ten years operation, the Day Hospital, which was first established in the ALLAN MEMORIAL INSTITUTE (ROYAL VICTORIA HOSPITAL, DEPARTMENT OF PSYCHIATRY) has been reviewed and found to have been exceedingly successful. Similar Day Hospitals have been established in Canada, the United States, and Britain. Patients come from nine to five each day except Sunday. All types of patients that can be admitted to a day and night division of a general hospital are accepted in a day hospital, and all forms of treatment, with the possible exception of insulin coma, are administered. The cost to the patient is from one half to one third less than the charge to the patient who has to remain overnight in the hospital.