566 Specific References 



colchicine on mitosis of Allium and Colchicum. Hereditas 26:262-276. 



M. Levine. 1946. The effect of colchicine and acenaphthene in combina- 

 tion with X-rays on plant tissue. II. Bull. Torrey Bot. Club 73:34-59. 



E. W. LiNDSTROM and K. Koos. 1931. Cyto-genetic investigations 



of a haploid tomato and its diploid and tetraploid progeny. Amer. J. Bot. 



18:398-410. T. M. Little. 1942. Tetraploidy in Antirrhinum majus 



induced by sanguinarine hydrochloride. Science 96:188-189. B. R. 



Nebel. 1937. Cytological observations of colchicine. Biol. Bull. 73:351- 



352. B. R. Nebel and M. L. Ruttle. 1938. Colchicine and its place 



in fruit breeding. N. Y. State Agric. Exp. Sta. Circ. 183. J. G. 



O'Mara. 1939. Observations on the immediate effects of colchicine. J. 

 Hered. 30:35-37. G. Pixcus and C. H. Waddington. 1939. The ef- 

 fects of mitosis-inhibiting treatment on normally fertilized pre-cleavage 



rabbit eggs. J. Hered. 30:515-518. H. P. Riley. 1939. Introgressive 



hj'bridization in a natural population of Tradescantia. Genetics 24:753- 



769. S. Satina and A. F. Blakeslee. 1943, 1944, 1945. Periclinal 



chimeras in Datura. Amcr. J. Bot. 30 :453-462 ; 31 :493-502 ; 32 :72-81. 



K. Sax. 1936. The experimental production of polyploidy. J. Arnold 

 Arboretum 17:153-159. K. Sax. 1937. Effect of variations in tem- 

 perature on nuclear and cell division in Tradescantia. Amer. .J. Bot. 24: 



218-225. H.H.Smith. 1939. The induction of polyploidy in Nico- 



tiana species and species hybrids. J. Hered. 30:290-306. H. E. 



Warmke and A. F. JBlakeslee. 1939. Induction of simple and multiple 

 polyploidy in Nicotiana by colchicine treatment. /. Hered. 30:418-432. 



S. J. Wellensiek. 1939. The newest fad, colchicine, and its origin. 



Chron. Bot. 5:15-17. 



CHAPTER 29 



C. E. Allen. 1940. The genotype basis of sex-expression in Angio- 



sperms. Bot. Rev. 6:227-300. S. A. Asdell. 1944. The genetic sex 



of intersexual goats and a probable linkage with the gene for hornlessness. 



Science 99:124. F. Baltzer. 1914. Die Bestimmung des Geschlechts 



nebst einer Analyse des Geschlechtsdimorphismus bei Bonellia. Mittheilung 

 cms der Zool. Station zu Neapel 22:1-44. R. O. Berry. 1939. Obser- 

 vations on chromosome elimination in the germ cells of Sciara ocellaris. 

 Proc. Nat. Acad. Sci. 25:125-127. F. H. Billings. 1933. Develop- 

 ment of the embryo-sac in Phoradendron. Ann. Bot. 47:261-278. 



C. B. Bridges. 1925. Sex in relation to chromosomes and genes. Amer. 



Natur. 59:127-137. W. E. Castle. 1930. The quantitative theoiy of 



sex and the genetic character of haploid males. Proc. Nat. Acad. Sci. 16: 



783-791. F. A. E. Crew. 1926. Abnormal sexuality in animals. I. 



Genotj'pical. Quart. Rev. Biol. 1:315-359. Th. Dobzhansky and 



B. Spassky. 1941. Intersexes in Drosophila pseudoobscura. Proc. Nat. 



Acad. Sci. 27:556-562. R. A. Emerson. 1932. The present status of 



maize genetics. Proc. VI Internal. Cong. Genetics 1:141-152. F. 



Fagerlind. 1940. Die Terminologie der Apomixis-Prozesse. Hereditas 



26:1-22. G. Fankhauser. 1938. Sex differentiation in a haploid 



salamander, Triton taeniatus Laur. J. Exp. Zool. 79:35-49. G. Fank- 



