This comprehensive text is divided into five sections. The first section, on the basis of heredity, consists of 12 chapters devoted to a review of the fundamental principles of genetics. The second section, which is much more brief, defines the scope and methods of medical genetics. The third section discusses the inheritance of morphological and physiological traits, blood groups, psychic traits, and constitution and constitutional types. The remaining two sections deal with hereditary diseases and genetic hygiene, respectively, and should be of particular interest to the clinician. The book is amply documented with photographs, charts, and pedigrees.