References 329 



Semon, R. Das Problem der Vererbungslehre erworbener Eigen- 



schaften. Leipzig, 1912. 



Spencer, H. Principles of Biology. New York, 1883. 

 Thompson, J. A. Heredity. Edinburgh, 1908. 

 Thorndike, E. L. Animal Intelligence. New York, 1911. 

 Walter, H. E. Genetics. New York, 1913. 

 Weismann, A. The Germ Plasm. New York, 1893. 

 Weismann, A. Essays on Heredity. Oxford, 1889. 

 Wilson, E. B. The Cell in Development and Inheritance. New 



York, 1900. 

 Woods, F. A. Heredity in Royalty. New York, 1906. 



Monographs and Papers 



Bailey, L. H. The Modern Systematise Science, 46, Dec. 28, 



1917. 

 Bardeen, C. R. Abnormal Development of Toad Ova fertilized by 



Spermatozoa exposed to the Roentgen Rays. Jour. Exp. Zool., 



4, 1907. 

 Bateson, W. Presidential Address. British Ass'n Adv. Science, 



Australia, 1914. 



Baur, E. Vererbungs und Bastardierungsversuche mit Antirrhi- 

 num. Zeit. f. induk. Abstam. 3, 1910. 

 Boveri, Th. Zellen Studien. Die Entwicklung dispermer Seeigel- 



Eier, etc. Jena, 1907. 



Broman, I. Ueber geschlechtliche Sterilitat. Wiesbaden, 1912. 

 Brooks, W. K. Are Heredity and Variation Facts ? Address be- 

 fore 7th Internat. Zoological Congress, 1907. 

 Castle, W. E. Studies of Inheritance in Rabbits. Carnegie Inst. 



Wash. Publ. n, 1909. 

 Castle, W. E. and Phillips, J. C. On Germinal Transplantation 



in Vertebrates. Carnegie Inst. Wash. Publ. No. 144, 1911. 

 Castle, W. E. and Phillips, J. C. Piebald Rats and Selection. 



Carnegie Inst. Wash. Publ. No. 195, 1914. 

 Castle, W. E. Piebald Rats and the Theory of Genes. Proc. 



Nat. Acad. Sci. 5, 1919. 

 Cattel, J. McK. The Causes of the Declining Birth Rate. Proc. 



First National Conference on Race Betterment. Battle Creek, 



1914. 

 Conklin, E. G. Embryology of Crepidula. Journ. Morph. 13, 



1897. 

 Conklin, E. G. The Cause of Inverse Symmetry. Anat. Anz., 



1903. 



