1294 BIOLOGICAL EFFECTS OF RADIATION 



7. Blakeslee, a. F., a. D. Bergner, and A. G. Avery. Methods of synthesizing 

 pure-breeding types with predicted characters in the Jimson weed, Datura 

 Stramonium. Proc. Nation. Acad. Sci. 19: 115-122. 1933. 



8. Bridges, C. B. Aberrations in chromosomal materials. Eugenics, Genetics 

 and the Family 1 : 76-81. 1923. 



9. Delaunay, L. Die Chromosomenaberranten in der Nachkommenschaft von 

 rontgenisierten Ahren einer reinen Linie von Triticum vulgare albidum. Zeitsch. 

 Indukt. Abstamm. und Vererbungsl. 55: 352-355. 1930. 



10. Gager, C. S., and A. F. Blakeslee. Chromosome and gene mutations in 

 Datura following exposure to radium rays. Proc. Nation. Acad. Sci. 13 : 75-79. 

 1927. 



11. Goodspeed, T. H. Cytological and other features of variant plants produced 

 from X-rayed sex cells of Nicotiana tabacum. Botan. Gaz. 87 : 563-583. 1929. 



12. Goodspeed, T. H. The effects of x-rays and radium on species of the genus 

 Nicotiana. Jour. Heredity 20 : 243-259. 1929. 



13. Goodspeed, T. H. Inheritance in Nicotiana tabacum. -IX. Univ. California 

 Publ. Bot. 11: 285-298. 1930. [See also Ibid, (a) 11: 299-308, (b) 309-318. 

 1930.] 



14. Goodspeed, T. H. Die Bedeutung von quantitativen Chromosomenverander- 

 ungen. Naturwiss. 23 : 476-483. 1931. 



15. Goodspeed, T. H. Cytogenetic consequences of treatment of Nicotiana species 

 with x-rays and radium. Svensk Bot. Tidskr. 26: 147-162. 1932. 



16. Goodspeed, T. H. Chromosome unbalance and the asynaptic condition as 

 induced in Nicotiana by X-radiation. Proc. Sixth Internat. Congress Genetics 

 2:67-69. 1932. 



17. Goodspeed, T. H., and P. Avery. The occurrence of a Nicotiana glutinosa 

 haplont. Proc. Nation. Acad. Sci. 15: 502-504. 1929. 



18. Goodspeed, T. H., and P. Avery. Nature and significance of structural 

 chromosome alterations induced by X-rays and radium. Cytologia 1 : 308-327. 

 1930. 



19. Goodspeed, T. H., and P. Avery. Inheritance in Nicotiana tabacum. XIII. 

 Genetics 18: 487-522. 1933. 



20. Goodspeed, T. H., and P. Avery. The cytogenetics of 14 types derived from 

 a single X-rayed sex cell of Nicotiana Tabacum. Jour. Genetics [London] 29: 

 327-353. 1934. 



21. Goodspeed, T. H., and A. R. Olson. The production of variation in Nicotiana 

 species by X-ray treatment of sex cells. Proc. Nation. Acad. Sci. 14: 66-69. 

 1928. 



22. Horlacher, W. R., and D. T. Killough. Radiation-induced variation in 

 cotton. Jour. Heredity 22 : 253-262. 1931. 



23. Horlacher, W. R., and D. T. Killough. Chlorophyll deficiencies induced in 

 cotton (Gossypium hirsutum) by radiations. Trans. Texas Acad. Sci. 16 : 

 33-38. 1932. 



24. KoERNicKE, M. tTber die Wirkung von Rontgen und Radiumstrahlen auf 

 pflanzliche Gewebe und Zellen. Ber. Deut. Bot. Ges. 23: 404-415. 1905. 



25. Levine, M. Cytological studies on irradiated tissues. I. Proc. Internat. Cong. 

 Plant Sciences Ithaca 1: 271-297. 1926. (Bibliography.) 



26. Lewitsky, G. a., and A. G. Araratian. Transformations of chromosomes 

 under the influence of x-rays. Bull. Appl. Bot. and Plant Breeding 27(1): 265- 

 303. 1931. 



27. Lewitsky, G. A., A. Araratian, J. Mardjanishvil, and H. Shepeleva. 

 Experimentally induced alterations of the morphology of chromosomes. Amer. 

 Naturalist 66: 564-567. 1931. 



