36 Outline of Genetics 



15. Mayr, H., Waldbau auf naturgesetzlicher Grundlage. Berlin. 

 1909. 



16. MuNNS, E. N., Effect of fertilization on the seed of Jeffrey 

 pine. Plant World 22 : 138-144. 1919. 



17. PouLTON, Shonland, Shipley, Weisaiann, on heredity. Clar- 

 endon Press. 1 89 1. 



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



19. WiLLL\MS, J. Lloyd, Studies in Dictyotaceae III: Periodicity 

 of sex cells in D. dichotyma. Ann. Botany 19:531-560. 1904. 



