1 1 8 MUTATION AND PLANT BREEDING 



ity of chromosomes. Proc. Xth Intern. Congr. Genetics, 1: 300- 

 305. 



186. Symposium on Effects of Ionizing Radiation on Seeds and Its Sig- 



nificance for Crop Improvement. Proc. Sci. Symposium sponsored 

 by the Intern. Atomic Energy Agency and the Food and Agri- 

 culture Organization of the United Nations. Karlsruhe, I960. 

 (in press). 



187. Taylor, J. H., Woods, P. S., Hughes, W. L. 1957. The organization 



and duplication of chromosomes as revealed by autoradio- 

 graphic studies using tritium-labeled thymidine. Proc. Nat. Acad. 

 Sci., 43: 122-128. 



188. Thoday, J. M. 1953. Sister-union isolocus breaks in irradiated 



Vicia faba: The target theory and physiological variation. Hered- 

 ity, 6 (Suppl): 299-309. 



189. Tobias, C. A., Anger, H. O., and Lawrence, J. H. 1952. Radio- 



logical use of high energy deuterons and alpha particles. Amer. 

 Jour. Roentgenol, and Radium Therapy, 67: 1-27. 



190. U. S. Atomic Energy Commission. 1960. Genetics Research Pro- 



gram of the Division of Biology and Medicine. Washington: 

 Office of Technical Services, Dept. of Commerce, TID-4041. 



191. Wainwright, S. D., and Nevill, A. 1955. Some effects of post-irra- 



diation treatment with metabolic inhibitors and nutrients upon 

 X-irradiated spores of Streptomyces. Jour. Bad., 70: 547-551. 



192. Whiting, A. R. 1948. Incidence and origin of androgenetic males 



in X-rayed Habrobracon eggs. Biol. Bui., 95: 354-360. 



193. Whyte, C. N. 1959. Principles of Radiation Dosimetry. London 



and New York: John Wiley. 



194. Wilson, G. B., and Sparrow, A. H. 1960. Configurations resulting 



from iso-chromatid and iso-subchromatid unions after meiotic 

 and mitotic prophase irradiation. Chromosoma, 11: 229-244. 



195. Wilson, G. B., Sparrow, A. H., and Pond, V. 1959. Sub-chromatid 



rearrangements in Trillium erectum L.: I. Origin and nature of 

 configurations induced by ionizing radiation. Amer. Jour. Bot., 46: 

 309-316. 



196. Wimber, D. E. 1959. Chromosome breakage produced by tritium- 



labeled thymidine in Tradescantia paludosa. Proc. Nat. Acad. 

 Sci., 45: 839-846. 



197. Wolff, S. 1960. Problems of energy transfer in radiation-induced 



chromosome damage. Radiation Res., Suppl. 2, 122-132. 



198. . 1961. Chromosome aberrations. In A. Hollaender, ed., 



Radiation Protection and Recovery. London: Pergamon Press, 

 157-174. 



