INDUCED CHROMOSOMAL ALTERATIONS 1295 



28 LiVDSTROM, E. W. Hereditary radium-induced variations in the tomato. 

 Jour. Heredity 4: 128^137. 1933. 



29. Mayor, J. W. The production of non-disjunction by X-rays. Science 66: 

 295-297. 1922. 



30. McClin'tock, B. Cytological observations of deficiencies involving known 

 genes, translocations and an inversion in Zea mays. Missouri Agr. Exp. Sta. 

 Res. Bull. 163. 1931. 



31. McKay, J. W., and T. H. Goodspeed. The effects of X-radiation on cotton. 

 Science 71 : 644. 1930. 



32. Navashin, M. a preliminary report on some chromosome alterations by 

 X-rays in Crepis. Amer. Naturalist 65: 243-252. 1931. 



33. Navashin, M. Origin of spontaneous mutations. Nature [London] 131: 436. 

 1933. 



34. Navashin, M. Altem der Samen als Ursache der Chromosomenmutationen. 

 Planta 20: 233-243. 1933. 



35. Pek.\rek, J. Dber den Einfluss der Rontgenstrahlen auf die Kern- und Zell- 

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36. Randolph, F. Some effects of high temperature on polyploidy and other 

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37. Sapehin, a. a. Rontgenmutationen beim Weizen. ZiJchter 2: 257-259. 

 1930. 



38. Scott, G. H. The disposition of the fixed mineral salts during mitosis. Bull. 

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39. Serebrovsky, A. S. A general scheme for the origin of mutations. Amer. 

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40. Stabler, L. J. Genetic effects of X-rays in maize. Proc. Nation. Acad. Sci. 

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41. Stadler, L. J. The rate of induced mutation in relation to dormancy, tem- 

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42. Stadler, L. J. Some genetic effects of X-rays in plants. Jour. Heredity 

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43. Stadler, L. J. The experimental modification of heredity in crop plants. 

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44. Stadler, L. J. On the genetic nature of induced mutations in plants. Proc. 

 Sixth Int. Cong. Genetics 1 : 274-294. 1932. 



45. Stein, E. tlber den Einfluss von Radiumbestrahlung auf Antirrhinum. 

 Zeitsch. Indukt. Abstamm. und Vererbungsl. 29: 1-15. 1922. [See also Ibid. 

 (o) 43: 1-87. 1926; (6) 62 : 1-13. 1932; (c) 64: 77-94. 1933.] 



46. Stein, E. Uber experimentelle Umstimmung der Reaktionsnorm bei Antir- 

 rhinum. Biol. Zentralbl. 47: 705-722. 1927. [See also Ibid, (a) 49: 112-126. 

 1929; (b) 50: 129-158. 1930.] 



47. Stein, E. Uber den durch Radiumbestrahlung von Embryonen erzeugten 

 erblichen Krankheitskomplex der Phytocarcinome von Antirrhinum majus. 

 Phytopath. Zeitsch. 4: 523-538. 1932. 



48. Stubbe, H. Untersuchungen iiber experimentelle Auslosung von Mutationen 

 bei Antirrhinum majus. IV. Zeitsch. Indukt. Abstamm. und Vererbungsl. 

 64:181-284. 1933. 



49. Timofeeff-Ressovsky, N. W. Die bisherigen Ergebnisse der Strahlengenetik. 

 Erg. Med. Strahlenforschung 5: 131-227. 1931. (Bibliography.) 



50. Yamamoto, Y. The influence of X-ray on the germ cells of Rumex acetosa L. 

 Kwagaku 2 : 458-462. 1932. 



Manuscript received by the editor November, 1933. 



