4 CONTENTS. 



Part II. New Data — Continued. page. 



Forked 58 



Linkage of vermilion and forked 59- 



Linkage of cherry and forked 59 



Linkage of forked, bar, and fused 60 



Linkage of sable, rudimentary, and forked 61 



Linkage of rudimentary, forked, and bar 62 



Shifted 63 



Linkage of shifted and vermilion 63 



Linkage of shifted, vermilion, and bar 64 



Lethals sa and sb 64 



Bar 66 



Notch 66 



Depressed 67 



Linkage of depressed and bar 67 



Linkage of cherry, depressed, and vermilion 68 



Club 69 



Genotypic club 70 



Linkage of club and vermilion 70 



Linkage of yellow, club, and vermilion 70' 



Linkage of cherry, club, and vermilion 72 



Green 73 



Chrome 74 



Lethal 3 74 



Lethal 3a 75 



Lethal lb 76 



Facet 76 



Linkage of facet, vermilion, and sable 77 



Linkage of eosin, facet, and vermilion 78 



Lethal sc 79 



Lethal sd 79 



Furrowed 80 



Additional data for yellow, white, vermilion, and miniature 80 



New data contributed by A. H. Sturtevant and H. J. MuUer 82 



Summary of the previously determined cross-over values 83 



Summary of all data upon linkage of gens in chromosome 1 84 



Bibliography 86 



