140 MUTATION AND PLANT BREEDING 



62. Muller, H. J. 1955. On the relation between chromosome changes 



and gene mutations. Brookhaven Symp. in Biol., Brookhaven 

 Nat. Lab., Upton, N. Y., 8: 126-147. 



63. Mundry, K. W., and Gierer, A. 1958. Die Erzeugung von Muta- 



tionen des Tabakmosaik-Virus durch chemische Behandlung 

 seiner Nukleinsaure in vitro. Zeit. indukt. Abstamm. -u-Vererb. 

 Lehre, 89: 614-630. 



64. Nakao, Y. 1957. Difference between male and female treatments in 



visible X-ray induced mutation rates in the silkworm. Intern. 

 Symp. Genetics, Tokyo, 260-264. 



65. . Unpublished communication. 



(i(). , Tazima, Y., and Sakurai, Y. 1958. Specificity of inter- 

 action between the individual gene locus and the structure of 

 chemical mutagens. Zeit. indukt. Abstamm. -u-Vererb. Lehre, 89: 

 216-220. 



67. Nasrat, G. F. 1954. Some cytological observations on the delayed 



effect of mustard gas. Nature, 174: 968-969. 



68. , Kaplan, W. D., and Auerbach, C. 1954. A quantitative 



study of mustard gas induced chromosome breaks and rearrange- 

 ments in Drosophila melanogaster. Zeit. indukt. Abstamm. -u- 

 Vererb. Lehre, 86: 249-262. 



69. Novick, A. 1955. Mutagens and antimutagens. Brookhaven Symp. 



in Biol., Brookhaven Nat. Lab., Upton, N. Y., 8: 201-215. 



70. and Szilard, L. 1951. Experiments on spontaneous and 



chemically induced mutations of bacteria growing in the chemo- 

 stat. Cold Spr. Harb. Symp. Quant. Biol, 16: 337-343. 



71. Oehlkers, F. 1943. Die Auslosung von Chromosomenmutationen 



in der Meiosis durch Einwirkung von Chemikalien. Zeit. indukt. 

 Abstamm. -u-Vererb. Lehre, 81: 313-341. 



72. . 1953. Chromosome breaks influenced by chemicals. Heredi- 

 ty, 6: (Suppl.): 95-106. 



73. Oster, I. I. 1958. Interactions between ionizing radiation and chem- 



ical mutagens. Zeit. indukt. Abstamm. -u-Vererb. Lehre, 89: 

 1-6. 



74. Rapoport, I. A. 1946. Carbonyl compounds and the chemical mech- 



anism of mutations. C. R. Acad. Sci., USSR, 54: 65-67. 



75. Revell, S. H. 1953. Chromosome breakage by X-rays and radio- 



mimetic substances in Vicia. Hereditas, 6: (Suppl): 107-124. 



76. Robertson, A., and Rendel J. M. Unpublished communication. 



77. Rogers, S. 1955. Studies on the mechanism of action of urethane 



in initiating pulmonary adenomas in mice: I. The indirect nature 

 of its oncogenic influence. Jour. Nat. Cancer hist., 15: 1675-1683. 



