48 



A. H. STURTEVANT 



TABLE 2 



BCO. 



BO. 



BP. 



BR. 



BM. 



COP. 



COR. 



COM. 



OP. 



OR. 



OM. 



CR. 



CM. 



FACTORS CONCERNED 



B(C, O).. 

 (C, 0)P.. 

 (C, 0)R. 

 (C, 0)M. 

 PR 



PROPORTION OP 

 CROSS-OVERS 



PM. 



193 



16287 



2 



373 

 1464 

 4551 

 115 

 324 

 260 

 693 

 224 

 748 

 1643 

 4749 

 76 

 161 

 247 

 836 

 183 

 ^ 538 

 218 

 404 

 236 

 829 

 112 

 333 

 214 

 21736 

 471 

 1584 

 2062 

 6116 

 406 

 898 

 17 

 573 

 109 

 405 



PER CENT OF CROSS-OVERS 



1.2 

 0.5 

 32.2 

 35.5 

 37.6 

 30.0 

 34.6 

 47.2 

 29.4 

 34.0 

 54.0 

 28.5 

 33.6 

 1.0 

 29.7 

 33.7 

 45.2 

 3.0 

 26.9 



