This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Original Published by: Mifflin in 1919 in 235 pages; Subjects: History / General; Medical / Health Care Delivery; Medical / Health Risk Assessment; Medical / Public Health; Political Science / Public Policy / Social Services Social Science / Social Work;