Social service in the hospitals of this country is a comparatively recent development. Fifty years ago even the beginning of such a service did not exist, while today no hospital that makes a pretense of being a modern institution is without the beginning of such a service, and in some instances forty or fifty paid social workers are employed for the needs of a single hospital. Unpaid volunteer workers have always been associated with the paid workers in the better hospitals, and perhaps their service represents nearly as large a service to the community as that rendered by the paid worker.
It has seemed wise to review briefly the factors and to study the growth of so epochal a movement in the modern community health program. For the sake of historical accuracy, if for no other reason, it should be studied in order that credit may properly be given the