380 



Maternal Inheritance and Mendelism 



(6) Reciprocal crosses between European breeds (Italian white and 

 Siua blanc) and Japanese normal-coloured breeds (divoltine Shinkawachi, 

 tetravoltine Tatsutahime, and divoltine Asakanisliiki). 



The egg-colour of these European breeds are practically the same as 

 that of Papillons noirs, i.e. greenish-shaded slate. 



Matings 

 9 Italian white x <j Shinkawachi 



? Shinkawachi x i Italian white 



J Tatsutahime x i Italian white 



? Asakanishiki x i Sina blanc 



J Italian white x j Tatsutahime 



? Sina blanc x s Asakanishiki 



Number of 

 Matin gs 



3 



7 



7 

 4 



Colour of Fi eggs 

 slate grey 

 mixture of various greenish-shaded 



greys and normal slates 

 Japanese normal colour 

 all divoltine white 



a mixture of various green-shaded 



greys and normal slates 

 the same colour as the above 



(7) Reciprocal crossing between albino and culour-egged breeds. 

 The colour-egged breeds used in this series of experiments were : 



1. European yellow, Papillons noirs. 



2. Japanese white, "Sekai-ichi," "Tako," " Chusii," and the extracted 

 white " Ivg," univoltine green, " Seihaku." 



S. Albino : univoltine Chusii albino (the colour of the e^g is 

 a greenish white, sometimes faintly shaded with orange), another is the 

 Chinese orange breed, its eggs being clear orange with certain variations 

 in intensity.' 



Matings 

 ? Orange x <f Papillons uoirs 

 J Orange x s Sekai-ichi 



$ Orange x 6 Green 



? Orange x i Ivg 

 ? Chusii albino x 



Number of 

 Matings 



1 



? Chusu albino x 



? Papillons noirs x 



? Sekai-ichi x 



? Green x 



<5 Univoltine 

 Chiisu 



S Chiyodzuru 

 S Orange 



? Ivg 



J Tako 



? Chiyodzuru 



cf Orange 

 <J Orange 



<f Orange 

 <J Orange 



X i Chusu albino 4 



Colour of f 1 eggs 

 light pinkish brown 

 mixture of orange to dark-pinkish 



browns 

 4 light pinkish brown with various dark 



shades 



1 dark pinkish grey 



2 Orange, slightly shaded with a dark 

 pink 



3 a mixture of orange, dark pink, and 

 a few normal eggs 



some batches are all white, some 

 white mixed with various shaded 

 eggs 



the same as the above 



European green -shaded eggs, one being 

 little lighter in colour than the 

 others 



all normal brownish grey 



various green-shaded eggs, character- 

 istic to the green breed 



all normal brownish grey 



the same as tiie above 



the same as the above 



