K. TOYAMA 



363 



TABLE III. 



Pedigree of Whitish-grey Eggs derived from the Normal 

 Univoltine White. 



Parent egg batch, No. 12 All Grey eggs (laid in the Spring of 1908) 



I 



First generation (Spring o! 1909) G (1) + 



"1 

 N(l) 



Second generation (Spring of 1910) G (2) + N (i) N (8) 



I 



Third generation ^^ (15) + G (16) 



These figures will be again summarized graphically as below : 



A. 



G = Grey egg batch, 2\r=Normal, BG = B-Grey. 

 1. Parent eggs in 1908 (No. 24) G 



1 



I 



{N + G) 



I 



1909 (Spring) 



1909 (Summer) A" {N + G) [N + G) 



1910 (Spring) all N 



I I 



(N + G + BG) 



1910 (Summer) all N (G + BG) {N + G + BG) 



I 



H- n 



1911 (Spring) all N (G + BG) 

 B. 



1. Parent eggs 1908 



4. 



n 



1911 (Spring) (G + N) 



25—2 



