380 



Maternal Inheritance and Mendelism 



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

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

 tetravoltine Tatsutahirne, and divoltine Asakanishiki). 



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

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



Matings 

 $ Italian white x s Shinkawachi 



? Shinkawachi x ^ Italian white 



? Tatsutahirne x <j Italian white 



¥ Asakanishiki x <f Sina blanc 



? Italian white x <? Tatsutahirne 



? Sina blanc x j Asakanishiki 



Number of 

 Matings 



3 



3 

 25 



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 colour-egged breeds. 

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



1. European yellow, Papillons noirs. 



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

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



3. Albino : univoltine Chusii albino (the colour of the egg 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 c? Papillons noirs 

 ? Orange x <? Sekai-ichi 



? Orange x c? Green 



? Orange x <? Ivg 

 ? Chiisii albino 



Number of 

 Matings 



1 



<f Univoltine 

 Chiisu 



? Chiisii albino x c? Chiyodzuru 

 ? Papillons noirs x cT Orange 3 



Colour of f 1 eggs 

 light pinkish brown 



mixture of orange to dark-pinkish 

 browns 



14 light pinkish brown with various dark 

 shades 

 1 dark pinkish grey 



(2 Orange, slightly shaded with a dark 

 I pink 



3 a mixture of orange, dark pink, and 

 [ a few normal eggs 



some batches are all white, some 

 white mixed with various shaded 



? Sekai-ichi 

 ? Green 



? Ivg 



? Tako 



? Chiyodzuru 



<? Orange 

 (? Orange 



<r Orange 6 



(f Orange 4 



(? Chusii albino 4 



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 the above 



the same as the above 



