1. Some people still believe that mental illness comes suddenly, but Science teaches mental illness Published / Created: [ca. 1949] Call Number: Poster0063 Image Count: 1 Resource Type: still image Description: Title from item. Publisher: National Mental Health Foundation Subject (Topic): Mental illness, Mental health, Sleeping, Strangers, and Balconies Found in: Medical Historical Library, Cushing/Whitney Medical Library > Some people still believe that mental illness comes suddenly, but Science teaches mental illness develops gradually and shows warning signs in advance. [graphic]