{()() 



I'rocccdhif/s of fiuliaini Acddcvii/ of Science. 



(1)) Eosiiicf by Coral 9 . 



P. w«XO . w'^V^^'XO 



w«w':"XX 

 125 



wC"XO 

 115 



8. Nummary. 



The genes for buff and coral known to be allelomorpbic to white have 

 here been tested with tinged and ])lood. two otlier genes allelmorphic to 

 white. The exr>ectation is that since both are allelomorphic to wlaite, tlaey 

 will be allelomorphic to eacli other. The results of the different combina- 

 tions made verify the expectations. Sufficient evidence has accumulated to 

 show that these are members of the same allelomorphic series. The fact 

 that tlie red eyed fly does not appear in the Fj or F. bears out the assumption 

 that the different members of this multiple allelomorph series are but 

 different expressions of the same material particle and that they occupy 

 identical loci on the sex-Jiromo.some. 



0. Literature. 



(1.) Hyde, R. R. Two new members of a .sex-Linked Multiple Allelomorph 



System. Genetics lOK!. I. 535-580. 

 (2.) Hyde, R. R. and Powell, H. M. Mosaics in Drosopliila Ampelophila. 



Genetics 1916 1. 581-583. 

 (3.) Hyde. R. R. On the change that takes place in the chromosome in 



mutating stocks. Proceedings Indiana Academy of Science 1915. 

 (4.) Lancefield, D. E. An Autosomal bristle modifier affecting a sex-linked 



character. Am. Nat. 1918. 52, 4(32-4<34. 

 (5.) Morgan, T. H. and Bridges, C. B. Sexdinked inheritance in Droso- 



phila. 1910. Carnegie Institution of Washington. Publication 237. 

 (6.) Miller. H. J. Further changes in the white eye series of Drosophila 



and their bearing on the manner of occurrence of mutation. J. Exp. 



Zool.. 1920. 21. 443-473. 

 (7.) Safir. S. R. Buff, a new allelomorph of white eye color in Droso- 

 phila. Genetics 191G. /, 584-590. 



