356 



Maternal Inheritance and Mendelism 



TABLE I. 



BrotOTiregged Series. 



Number of Univoltine 

 batches produced 



Number of 

 Matings 



Total 



Normal Brown Mixture White batches 

 1908 (Spring brood). First generation. 

 16* 2G 26 



19* 61 61 



Totals ... 



1908 (Summer brood). 



87 



Second generation. 



19, 12* 

 15.11 



10 

 



19 

 11 



30 



29 



7 



36 







Totals ... 10 



1909 (Spring brood). Third generation. 



19. 12. 9 32 



„ 12* 35 



„ 25 all 



white 



Totals 















67 



1909 (Summer brood). Fourth generation. 



19. 12. 12. 1* 3 



„ 2 2 



„ 3 18 



„ 4 8 



,. 5* 33 



Totals 







64 











1910 (Spring brood). Fifth generation. 



19. 12. 12. 1. 2* 



., 5.8 



26 

 18 



Totals 



44 



1910 (Summer brood). Sixth generation. 



87 



58 

 18 



76 



32 



35 



all 

 white 



67 



3 

 2 



18 

 8 



33 



64 



26 

 18 



44 



Normal-egged Series. 



Number of Univoltine 

 batches produced 



Divoltine 

 batches 



Number of 

 Matings 



4* 

 18* 



Normal Brown Mixture White bai 

 30 ; 



42 ^ 



Totals 















72 



1908 (Summer brood). 

 4. 1 3 



18. 9 1 



18. 12* 6 



18. 14 5 



Second generation. 

 



12 



4 4 



5 12 



Totals 



15 



10 



18 







1908 (Autumn brood). 

 18. 12. 5* 



„ 9* 



,. 20* 28 



Third generation. 

 9 4 



5 8 



4 



Totals 



28 



14 



16 



1909 (Spring brood). Fourth generation. 

 18. 12. 5. 17 4 18 



„ 9. 25 10 10 



„ 20. 18* 2 20 



Totals 



6 







48 



1910 (Spring brood). Fifth generation. 

 18. 12. 20. 18. 19* 6 20 



18. 12. 20. 18. 26 13 



Totals ... 6 33 



1911 (Spring brood). Sixth generation. 

 4 



18. 12. 20. 18. 19 

 (5 matings) 



25 



Totals ... 572 572 | 



* Eggs laid by the mating marked with an asterisk are used as the parents of the next generation. 



