RESTRICTED SERIES. 



Pink-eyed yellow x pink-eyed black, giving only intense pink-eyed young. 

 Cross 196. Giving pBAg a.nd pY? 



99 



In the following crosses the yellow parents would fall into one of the four following classes : 



Pink-eyed dilute yellow, YiBriBidiPiA^R; 

 Pink-eyed dilute yellow, YzBr^BidipiR; 

 Pink-eyed dilute yellow, YiBrzdipiAiB; 

 Pink-eyed dilute yellow, YiBridiPiB,. 



These four types, as in the intense pink-eyed forms, are indistinguishable from one 



another by superficial examination. 

 Eyes pink, otherwise indistinguishable from the dark-eyed dilute yellows already described. 



No case of a pink-eyed dilute sooty yellow has been recorded in these experiments. 



Pink-eyed dilute yellow x dilute black agouti, giving dilute dark-eyed and dilute pink-eyed young. 

 Cross 197. Giving dY, pdY, dBAg, pdBAg, dB, pdB, dBrAg, and dBr. 



Pink-eyed dilute yellow x black, giving intense and dilute dark-eyed and pink-eyed young. 

 Cross 198. Giving Y, pY, pdY, B, pB, and dB. 



We may now considera few tests of albinos which have been made. All of these seem to 

 show that albinos may be potentially any of the 32 color varieties already mentioned 

 or any of their heterozygous combinations. None of the following albinos were tested 

 for dilution and therefore they are treated as intense in their formulae, though if the 

 proper test was made they might not turn out so. 



