K. ToYAMA 363 



TABLE III. 



Pedigree of Whitish-grey Eggs derived from the Normal 

 Univoltine White. 



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



First generation (Spring of 1909) G (1) + N (1) 



H- 1 



Second generation (Spring of 1910) G (2) + N (4) N (8) 



I 1 



Third generation N (\S) + G (16) 



These figures will be again summarized graphically as below 



A. 



G = Grey egg batch, iyr= Normal, BG=B-Grey. 

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



-~i 



2. „ 1909 (Spring) (N + G) 



3. „ 1909 (Summer) N {N + G) (N + G) 



4. „ 1910 (Spring) all N 



5. „ 1910 (Summer) all N (G + BG) (N + G + BG) 



I j 



1911 (Spring) all 'N (G + BG) 



B. 



1. Parent eggs 1908 G 



I 



.J 



1909 (Spring) 



I — 



(G + N) 



1910 (Spring) {G + N) aU N 



4. „ 1911 (Spring) (G + N) 



25—2 



