No. 639] SHORTER ARTICLES AND DISCUSSION 377 



THE HEREDITY OK OK'.WOl-: KM-: COi.Oi; 1\ 

 DROSOPIIIKA .MKL.WOdAsTKIv' 



There are three points ot spfi-i;il itiicrcsi m iiir h, iv inv of 

 orange eye color. First, the eye rnlm- i> in ipr jtrcNriic,. of 

 two sex-linked genes; second, tlirsf two u-fii.'s nnv >.'p;ii';n.> in 

 tlie female when orange is erossrd to ilic wild stock, pi-d. hiring 

 in F_„ in ad.lition to oi.m^r and ^\l'd Up- ni.il. ^ <i thud .^e 

 color called s<ihnoi, tl, nd w hui ,111 m ..n-', 1.1, d. , 1 d tM i he 

 parent stock, irdnrrd. only unmov and wdd lyp.- i.uil.'s Hp{)ear 

 in F,. 



selected line of the mntaiit str.un rrdur.Ml. Klrvn nmlrx ;ip- 



