0>' HEEEDITY TS BABBITS. 301 



in the yellow-grey than in the wild grey, and do not extend so far 

 down the flanks. In all respect?, therefore, the yellow-grey has 

 more yellow and less black pigment than the wild grey. 



The yellow-grey type breeds perfectly true to the above colour- 

 -details, and can always be distinguished from the wild grey. 



The coat of the albino Angora is of course pure white, with no 

 trace of any kind of pigment. 



(a) First G-eneration (FJ. 



The yellow-grey Belgians crossed with the white Angoras 

 gave hybrids all of which had wild-grey coats, no matter which 

 way the cross was made. 



Xo. 1 yellow-grey doe mated with 'So. 2 white buck produced 

 26 young with coats indistinguishable from those of the wild grey. 

 In the reverse cross, Xo. 3 white doe mated with Xo. 4 yellow- 

 grey buck, gave 16 young, all with wild-grey coats. One indi- 

 vidual (Xo. 7) from the latter mating had, when young, rather 

 more yellow on the chest and flanks than the others ; but after 

 the second moult it became almost wild grey, like the rest. 

 Further experiments recently carried out have given similar 

 results : altogether 70 individuals have been raised by mating 

 yellow-grey with white, and all have wild-grey coat.?. The 

 following table gives the results of the individual matings 

 (TGr= yellow-grey, 'W=white): — 



Table 19. 

 Tellow-grey x "White (Fj). 



Matings. Wild Grey. 



Y G 1 X W 2 26 



W 3 X Y G 4 16 



^V 6 X Y G 4 8 



Y G 13 X W 2 4 



W23 X YG2o 16 



Total 70 



(h) Second Generation (F,/). 



The greys of the first generation bred together, with one 

 exception, proved to be hybrid greys containing recessive black, 

 giving a mixture of greys and blacks, the exception giving all 



