The aim of this textbook is to compress within the narrowest space such a clear and intelligible account of the structures, activities, and care of the human system as is essential for the purposes of general education. The author has also sought to present the facts and principles of the subject in such a natural order as will best subserve the true ends of scientific education. The object of physiology is to teach how to preserve health, but this is not best done by merely memorizing rules. The rules must be supported by reasons, and if there is not some thorough understanding of the mechanism and powers of the human body. [Title on book cover is "Anatomy, Physiology, and Hygiene."]