BIBLIOGRAPHY 423 



Earth and its Inhabitants, R. S. Lull, editor. 3d edition. Yale 

 University Press, 1922. 



CHAPTER XVII 



BABCOCK, E. B. and CLAUSEN, R. E. Genetics in Relation to Agri- 

 culture. McGraw-Hill Book Co., 1918. 



BATESON, WILLIAM. Materials for the Study of Variation. The 

 Macmillan Co., 1894. 



BATESON, WILLIAM. Problems of Genetics. Yale University 

 Press, 1913. 



CASTLE, W. E. Genetics and Eugenics. Revised edition. Har- 

 vard University Press, 1921. 



CONKLIN, E. G. Heredity and Environment in the Development of 

 Men. 4th edition. Princeton University Press, 1922. 



COULTER, J. M. and COULTER, M. C. Plant Genetics. University 

 of Chicago Press, 1918. 



CUNNINGHAM, J. T. Hormones and Heredity. The Macmillan 

 Company, 1922. 



DAVENPORT, C. B. Heredity in Relation to Eugenics. H. Holt 

 & Co., 1911. 



EAST, E. M. and JONES, D. F. Inbreeding and Outbreeding; their 

 Genetic and Sociological Significance. J. B. Lippincott Co., 1919. 



GALTON, FRANCIS. Natural Inheritance. 1889. 



GODDARD, H. H. The Kallikak Family. A Study in the Heredity 

 of Feeble-mindedness. The Macmillan Co., 1912. 



GUYER, M. F. Being Well-born. Bobbs Merrill Co., 1916. 



JENNINGS, H. S. "Heredity and Personality." Science, 1911. 



KELLICOTT, W. E. The Social Direction of Human Evolution. 

 D. Appleton & Co., 1911. 



MORGAN, T. H. Heredity and Sex. Columbia University Press, 1913. 



MORGAN, T. H. The Physical Basis of Heredity. J. B. Lippin- 

 cott & Co., 1919. 



MOTT, F. W. Nature and Nurture in Mental Development. Condon, 

 1914. 



PEARL, RAYMOND. Modes of Research in Genetics. The Mac- 

 millan Co., 1915. 



