Sumário:
- Contents: On the number of races of mankind, by S. M. Garn and C. S. Coon
- Genetics and the races of man, by W. C. Boyd
- Race and evolution, by S. M. Garn
- Technological advance and major racial stocks, by F. S. Hulse
- Basal metabolism, race, and climate [and] Body weight, race, and climate, by D. F. Roberts
- Nose shape and climate, by J. S. Weiner
- The biological adaptation of man to hot deserts, by P. T. Baker
- Physiological regulations and the origin of human types, by C. G. Wilber
- Anthropological implications of sickle cell gene distribution in West Africa, by F. B. Livingstone
- Human evolution in contemporary communities, by G. W. Lasker
- Genetic drift in a religious isolate, by G. Glass [and others]
- Aspects of polymorphism in man, by A. A. Allison
- The dynamics of racial intermixture in the American Negro, by D. F. Roberts
- On the unlikelihood of significant admixture of genes from the North American Indian in the present composition of the Negroes of the United States.