Kirkbride's plan for effectively treating the insane. Design and architectural features The Kirkbride Plan asylums tended to be large, imposing institutional buildings, with the defining feature being their "narrow, stepped, linear building footprint" featuring staggered wings extending outward from the center, resembling the wingspan of a bat. The standard number of wings for a Kirkbride Plan hospital was eight, with an accommodation of 250 patients. Kirkbride's philosophy behind the staggered wings was to allow individual corridors open to sunlight and air ventilation through both ends, which he believed aided in healing the mentally ill. Each wing, according to Kirkbride's original guidelines, would house a separate ward, which would contain its own "comfortably furnished" parlor, bathroom, clothes room, and infirmary, as well as a speaking tube and dumbwaiter to allow open communication and movement of materials between floors. The wings furthest from the center complex of the building were reserved for the "most excitable," or most physically dangerous and volatile patients. Patient rooms were suggested to be spacious, with ceilings "at least high," but only large enough to room a single person. The center complexes of the Kirkbride Plan buildings were designed to house administration, kitchens, public and reception areas, and apartments for the superintendent's family. Architectural styles of Kirkbride Plan buildings varied depending on the appointed architect, and ranged from Richardsonian Romanesque to Neo-Gothic. In addition to the intricate building design, Kirkbride also advocated the importance of "fertile" and spacious landscapes on which the hospitals would be built, with views that "if possible, should exhibit life in its active forms." Kirkbride also suggested the hospital grounds be a minimum of in size. The foliage and farmlands on the hospital grounds were sometimes maintained by patients as part of physical exercise and/or therapy. Over the course of the nineteenth and twentieth centuries, the campuses of these hospitals often evolved into sprawling, expansive grounds with numerous buildings. Operations and staffing In his proposal, Kirkbride outlined specific guidelines as to how a Kirkbride Plan hospital should be staffed and operate on a daily basis. Kirkbride suggested a total of 71, all of whom were required to live within, or in the immediate vicinity of, the hospital. The superintending physician, or physician-in-chief, was required to live in the main hospital or in a building contiguous to it, while his family had the option of residing at the hospital or seeking private lodging. The staff