356 



Maternal Inheritance and Mendelism 



Brown-egged Series. 



TABLE I. 



Number of Univoltine Divoltine 

 batches produced batches 



Number of _ ■•- . lolaX 



Matings Normal Brown Mixture White batclies 



1908 (Spring brood). First generation. 

 15* 20 



19* 61 



26 

 61 



Totals 



1908 (Summer brood) 



19. 12* 

 15. 11 



Totals 



10 



30 



36 



76 



1909 (Spring brood). Third generation. 



19. 12. 9 



,, 12* 

 .. 25 



Totals 







67 



67 



1909 (Summer brood). Fourtli generation. 



19. 12. 12. 1* 

 2 

 3 

 4 

 5* 



Totals 



64 



64 



1910 (Spring brood). Piftb generation. 



Number of 

 Matings 



4* 

 18* 



Normal-egged Series. 



Number of Univoltine 

 batches produced 



Totals 















72 



1908 (Summer brood). Second generation. 

 4. 1 3 



18. 9 112 



18. 12* 6 4 4 



18- 14 5 5 12 



Totals 



15 



10 



18 



1908 (Autumn brood). Third generation. 



18. 12. 5* 9 4 



-, 9* 5 8 



„ 20* 28 4 



Totals 



28 



14 



16 







1909 (Spring brood). Fourth generation. 



18. 12. 5. 17 4 18 



„ 9. 25 1 10 



„ 20. 18* 2 20 



Totals 



1 







48 



1910 (Spring brood). Fifth generation. 

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



18. 12. 20. 18. 26 13 



Totals ... 6 



1911 (Spring brood). 



18. 12. 20. 18. 19 



(5 matings) 25 



33 



Sixth generation. 











Totals ... 572 572 



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



Normal Brown Mixture \Vhite batchf 

 30 30 



42 42 



72 



3 



4 



U 



43 



13 

 13 

 32 



58 



22 

 11 

 22 



55 



26 

 13 



39 



29 



