46 



INHERITANCE OF CHARACTERISTICS IN DOMESTIC FOWL. 

 C. RESULTS OF HYBRIDIZATION. 



We have next to consider the nature of the inheritance when one 

 parent belongs to an unbooted race, the other to a booted one (table 33). 



Table 33. Distribution of bootrgrades in the F^ generaiion of booted X nortrbooted parents. 



A. COCHIN CROSSES. 



Pen. 



No. 



773 



773 

 773 

 773 

 773 

 774 



Mother. 



No. Gen. Races. Gra 



1334 P 



193 I 



1366 



127 



692 



2075 



W. Legh 



...Do 



...Do 



...Do 



W.Legh. (R) 

 Coch 



Father. 



No. Geu. laces. Gra 



836 

 836 

 836 

 836 

 836 

 1431 



Bl. Coch ... 



...Do 



...Do 



...Do 



...Do 



W.Legh. (R) 



Totals (111). 



Grade of boot in ofFspring. 



01234567S9 10 



31 



27 



24 



10 



Aver- 



5.44 

 4.27 

 4.20 

 4.11 

 3.47 

 0.78 



3.91 



B. DARK BRAHMA CROSSES. 



D.Br 



...Do 



...Do 



...Do 



W. Legh . . , 



Min 



W. Legh.. . . 



...Do 



...Do 



D. Br 



...Do 



W. L., Min. , 

 D. Br 



..Do 



..Do 



..Do 



..Do 



..Do 



..Do 



Houd 



...Do 



MXP 



...Do 



D.Br 



...Do , 



...Do , 



...Do , 



...Do , 



MXP 



...Do 



D. Br 



MXP 



..Do 



..Do 



..Do 



..Do 



..Do 



..Do 



Totals (268). 



21 



37 



45 



83 



47 



21 



5.80 

 4.67 

 3.67 

 3.56 

 3.28 

 3.10 

 3.00 

 3.00 

 2.80 

 2.64 

 2.64 

 2.50 

 2.46 

 2.44 

 2.14 

 2.12 

 1.64 

 1.33 

 1.32 



2.84 



C. SILKIE CROSSES. 



744 

 744 

 744 



777 P 

 681 P 

 469 P 



Silkie... 

 ...Do... 

 ...Do... 



W. Legh.. 



...Do 



...Do 



Totals (37). 



25 



1.50 

 0.94 

 0.21 



0.76 



SUMMARY. 



Crosses. 



Grades of boot in ofFspring, reduced to percentages. 







Cochin ' 5.4J 1.8 5.4 



Brahma 7.8J 13.8i 16.8 



Silkie I 67.6; 13.51 5.4 



28.0 



31.0 



5.4 



24.3 



17.5 

 5.4 



21.6 



7.8 

 2.7 



1.8 



10 



Aver- 

 age. 



3.91 

 2.84 

 0.76 



An inspection of Table 33, which gives the distribution of grades of 

 boot in the offspring constituting the first hybrid generation, might well 

 lead to the conclusion that inheritance is here of a blending nature, or that, 

 if either condition is dominant, it is the booted one, as suggested in my 



