1926. The author explores various methods for extending man_s life span. Contents: Man is Made for a Long Life; Findings of Biologists; The Body_s Own Provisions for Nutrition and Drainage; How the Body_s Efficiency is Impaired; Habits that Kill; Nature_s Provisions for Living; Temperance and Wholesomeness; The Reign of Health Law; Machine Made Long Life; Follies of Science; and Medicine Shortens Life.