Blood Relations: Blood Groups and Anthropology.

The distribution of blood groups among the peoples of the world provides a useful system of human classification. In this book the author, a well-known geneticist, explains the blood group system: the theoretical basis of blood group studies; how these studies have helped to classify the peoples of each continent, and trace their movements and mixing; and how natural selection has helped to determine the picture we now see. The text is illustrated with maps and diagrams.