RETROSPECT AND PROSPECT 



which a major branch of science, biology, derives its comprehensibility. 

 It is for this reason especially that the new science of evolution has devel- 

 oped into so great a body of experimental and theoretical knowledge in 

 little more than a century. We may confidently hope for even greater 

 progress during the second century of evolutionary studies! 



REFERENCES 



Andrews, R. C, 1939. "What We'll Look Like Tomorrow," Colliers, 104, 12-13, 55-57 

 (July 8, 1939). Summarized above. 



Boyd, W. C, 1950. "Genetics and the Races of Man," Little, Brown & Co., Boston. 

 An introduction to physical anthropology from a genetic viewpoint, this book in- 

 cludes an interesting prediction of the future of man. 



Darwin, Charles Galton, 1953. "The Next Million Years," Doubleday & Co., Inc., 

 New York, N.Y., and Rupert Hart-Davis, London. Darwin's grandson, a distinguished 

 physicist, predicts that man's reproductive powers will outstrip the resources of the 

 world, resulting in tragic impoverishment. 



Hrdlicka, a., 1929. "Man's Future in the Light of His Past and Present," Froc. Am. 

 Philosophical Soc, 68, 1-11. Summarized above. 



337 



