EXTENDED SERIES. 



53 



Cross 11a. Black agouti heterozygous in black, density, and agouti crossed with dilute 

 black agouti heterozygous in black and agouti. YzBriBDdP^A x Y^Br-iBdiP-iA. 

 Expectation, 9 BAg, 9 dBAg, 3 BrAg, 3 dBrAg, 3 B, 3 dB, 1 Br, 1 dBr. 



Cross 12. Black agouti, heterozygous in color factor, black, dark eye, and agouti, crossed 

 with dilute black agouti heterozygous in color factor, black, dark eye, and agouti. 

 YBriBDiPpA x YBnBdiPpA. Expectation, 81 BAg, 27 B, 27 pBAg, 27 BrAg, 9 Br, 

 9 pB, 9 pBrAg, 3 pBr, 64 W. 



Black agouti x hrown agouti. 



Cross 13. Black agouti, heterozygous in black and density, crossed with brown agouti hetero- 

 zygous in density. YiBriBDdPiAi x YiBriDdP^Ai. Expectation, 3 BAg, 3 BrAg, 

 1 dBAg, 1 dBrAg. 



Black agouti x hlack. 



Gross 14. Black agouti heterozygous in the color factor crossed with black heterozygous in 



the color factor. YBrtBAPiA^ x YBr^BiDsP,. Expectation, 3 BAg, 1 W. 



Cross 15. Black agouti heterozygous in agouti crossed with homozygous black. 

 YiBriB^DiPiA x YiBriBiDiPi. Expectation, 1 BAg, 1 B. 



