1072 



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Bles, E. J. 1905. The life-history of Xenopus 

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Bragdon, D. E. 1951. The nonessentiality of the 

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Br.\gdon, D. E., L.\zo-Wasem, E. A., Zarrow, M. X., 

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Brode, M. D. 1928. The significance of the asym- 

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Bross.ard, G., and Gley, P. 1929. Production ex- 

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Brull, L., .\nd Cuypers, Y. 1954. Quekiues car- 

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BuLLOuGH, W. S. 1940b. A study of sex reversal 

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BuRDAK, V. D. 1955. Ob o.sobennostyakh polo- 

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Burger, J. W. 1942. Some effects of androgens 

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Burger, W. L., and Smith, P. W. 1950. The 

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C.\RS0N, H. L. 1945. Delayed fertilization in a 

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Castelnuovo, G. 1937. Effetti di alcuni oimoni 

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C.woLiNi, P. 1792. Abhandlung iiber die Erzeu- 



