276 Stuitevant. 



Loci B iuid Ba. 

 Kepulsion. BBa Bba bBa bba 



New data 374 328 380 293 



Coupling. 



New data 123 85 105 86 



Grand total, B and Ba, 857 / 1774 = 48-31 — . 



Loci Cv aud Vg'. 

 Repulsion. CvVg cvVg vg 



New data 63 632 660 



Coupling. 



New data 149 12 115 



Grand total, Vg and Cv, 75 / 856 = 8-7G -|-. 



Loci Vs' aud Sp. 



Repulsion. VgSp Vgsp vgSp vgsp 



New data 250 442 373 220 



Coupling. 



New data 66 30 20 45 



Grand total, Vg and Sp, 520 / 1446 = 35-9. 



Loci Ct and Sp, 



Repulsion. CvSp Cvsp cvSp cvsp 



New data ...... 106 263 210 61 



Coupling. 



New data 119 42 53 153 



Grand total, Cv and Sp, 260/1007 = 26-02—. 



Backcross tests of doublj' heterozygous males. 

 Loci Cv and Sp. 

 Coupling. CvSp Cvsp cvSp cvsp 



New data 29 17 



Repulsion F., counts. 

 Loci B and Ba. 



BBa Bba bBa bba 



New data 350 109 158 



Loci Cv and Sp. 



CvSp Cvsp evSp cvsp 



New data 143 64 67 



Independence of the cliromosomes in the female. 



Chromosomes I and 11. 



Loci W and B. 



Repulsion. WB Wb w«B w«b 



New data 149 130 115 132 



Total, 281 / 526 = 534 +. 



