300 Proceedings of Indiana Academy of Science. 
(b) Eosino by Coral ¢. 
12 w'XO 3 w’’'wXO 
F, : wew'xXX Maan wx 
125 115 
| 
The eye eolors are hard to distinguish. The females 
F, Flies seem to be a little lighter than the males; darker 
when old. 
102, wew' xX we'weXX wx wexX 
Wye see ie Meme Bat 166 70 90 
iL ya ea ae eed 59 36 40 
1] ciegbie! ton Paes eae eee 107 17 34 
MY Cree A Rie 196 98 97 
iS bie add ik i ee | 87 40 50 
SU aeons 80 31 41 
ENO bay se Bete ces take 695 292 352 
8. Summary. 
The genes for buff and coral known to be allelomorphic to white have 
here been tested with tinged and blood, two other genes allelmorphiec to 
white. The expectation is that since both are allelomorphie to white, they 
will be allelomorphic to each other. The results of the different combina- 
tions made verify the expectations. Suflicient evidence has accumulated to 
show that these are members of the same allelomorphiec series. The fact 
that the red eyed fly does not appear in the F, 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-.hromosome. 
9. Literature. 
(1.) Hyde, R. R. Two new members of a sex-Linked Multiple Allelomorph 
System. Genetics 1916. I, 535-580. 
(2.) Hyde, R. R. and Powell, H. M. Mosaics in Drosophila Ampelophila. 
Genetics 1916 1. 581-583. 
(5.) 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, 462-464. 
(5.) Morgan, T. H. and Bridges, C. B. Sex-linked inheritance in Droso- 
phila. 1916. 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. 31, 443-473. 
(7.) Safir, S. R. Buff, a new allelomorph of white eye color in Droso- 
phila. Genetics 1916. J, 584-590. 
