TY - BOOK AU - Pearl,Raymond TI - Studies in human biology U1 - 573.21 PEA PY - 1924///. CY - Baltimore : PB - Williams and Wilkins, KW - Human Biology N1 - Includes index; Contents: Pt.1.Considering man as an animal- Pt.2.Biological aspects of vital statistics-Pt.3.Human health and epidemiology- Pt.4.The population problem ER -