Group I. 



Exps. 43 .\ND 44. — Vesiculated magenla forked rugose — Continued. 

 Mating: vesiculated magenta X forked rugose. 



85 



Per cent cross-overs: vs-m, 33.7; m-f, 5.2; f-r, 26.0; counting all flies; va-m, 32.8, counting only v3 flies. 



Exp. 45. — Singed magenta forked short. 

 Mating: singed short X magenta forked. 



Per cent cross-overs: si-m, 28.6; m-f, 4.1; f-s, 19.8. 



Exp. 46. — Yellow crossveinless vermilion magenla forked. 

 Mating: yellow crossveinless X vermilion magenta forked. 



