520 M. J. Bukovac and S. H. Wittwer 



15. Stouc, B. B., and \amaki, T. The history and physiological action of gib- 

 berellins. Ann. Rev. Plant Physiol. 8: 181-216. 1957. 



16. , and Yamaki, T. Gibberellins: stimulants of plant growth. Science. 129: 



807-816. 1959. 



17. Takahashi, N., Kitamura, H., Kawarada, A., Seta, Y., Takai, M., Tamura, S., 

 and Siuniki, Y. Biochemical studies on "Bakanae" fungus. Part XXXIV. Isolation 

 of gibberellins and their properties. Bui. Agr. Chem. Soc. Japan. 19: 267-277. 

 1955. 



18. , Seta, Y., Kitanuua, H., and Sumiki, Y. Biochemical studies on "Bakanae" 



fungus. Part \l\iii. \ new gihberellin, gibberellin \. Bui. Agr. Chem. Soc. 

 Japan. 23: 405-407. 1959. 



19. Wittwer, S. H., and Bukovac, M. J. The effects of gibberellin on economic 

 crops. Econ. Bot. 12: 213-255. 1958. 



20. Yabuta, T., and Sumiki, Y. (Communication to the editor.) Jour. .\gr. Chem. 

 Soc. Japan. 14: 1526. 1938. 



21. , Sumiki, Y., Aso, K., Tamura, T., Igarasi, H., and Tamari, K. Bio- 

 chemical studies of "Bakanae" fungus. Part X. The chemical constitution 

 of gibberellin (1). Jour. Agr. Chem. Soc. Japan. 17: 721-730. 1941. 



