8 4 



SEX-LINKED INHERITANCE IN DROSOPHILA. 



SUMMARY OF ALL DATA UPON LINKAGE OF GENS IN CHROMOSOME I. 



In table 65 all data so far secured upon the sex-linked characters are 

 summarized. These data include the experiments previously pub- 

 lished in the papers given in the bibliography and the experiments 

 given here. The data from experiments involving three or more loci 

 are calculated separately for each value and included in the totals. 



TABLE 65. A summary of all linkage data upon chromosome I. 



