The book has no 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 the publisher's website (GeneralBooksClub.com). You can also preview excerpts of 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. Title: The Effect of Tropical Sunlight on the Development of Bones of Children in Puerto Rico; a Roentgenographic and Clinical Study of Infants and Young Children With Special Reference to Rickets and Related Factors; Original Publisher: Washington, U.S. Govt. Print. Off.; Publication date: 1933; Subjects: Rickets;