The Genetic Factors in the Development of the l{ousemouse, etc. jßß 



Mutual iudcpendauce of factors e and H. 



XXXIV. Mating of Blacks, heterozygous both for e and ii 



(AABBCCDDEeFFggHh) tO Hlac without ii (A.\BBCCDDeeFFgghh). 



In the three litters of such matings there were born : 



5 Black (EH), 5 Fade black (Eh), 4 Lilac (elf), 4 Fade lilac (eh) 

 Calc; 4.5 „ „ 4.5 ,. „ „ 4.5 ., „ 4.5 „ „ „ 



Mutual indept'udance of factors F and G. 



XXXV. Mating of agouti, heterozygous both for F and G (AABB 



CCDDEEFlGgHH) to silvered black (AABBCCDDEEffggHH). 



In two litters of such a mating there were: 



3 Agouti (FG), I Black (Fg), 2 Silvered ag:niti (fG), 5 Silvered black (fg) 

 Calc: 2.75 „ ,, 2.75 ., ,. 2.75 ., ,. ., 2.75 „ 



Mutual independanre of factors g and h. 



XXXVI. Mating of agouti, heterozygous both for g and ii 

 (AABBCCDDEEFFGgHh) to fade black (AABBCCDDEEFFgghh). 



In the fourteen Utters of such matings there were born: 



12 Agouti (GH), 15 Fade agouti (Gh). 16 Black (gH), 15 Fade black (gh) 

 Calc: 14.5 „ „ 14.5 ., „ .. 14.5 ,, „ 14.5 ., „ „ 



Mutual independance of factors G and L. 



XXXVII. Mating of Yellow agouti, heterozygote for both G and L 



(.\AbbCCDDEEFFGgHHLl) tO Spotted orange (AAbbCCUDEEFFggHHll). 



In four litters of such mating there were born: 



8 Solid yellow agouti (GL), 4 Solid orange (gL). 7 Spotted yellow agouti (Gl), 

 and 4 Spotted orange (gl) 

 Calc: 5.75 Sold yellow agouti (GL), 5.75 Solid orange (gL), 5,75 Spotted yellow 

 agouti (Gl), and 5.75 Spotted orange (gl) 



XXXVIII. ]\Iating of Agouti, heterozygous for both G and L 

 (AABBCCDDEEFFGgHHLl) to spotted black (AABBCCDDEEFFggl llIU). 



In 17 litters there were born: 



16 Solid agouti (GL), 15 Solid black (gL), ij Spotted agouti (Gl), lÄ Sjwtted 

 black (gl) 

 Calc: 15.5 Solid agouti (GL), 15.5 Solid black (gL), 15.5 Spotted agouti (Gl), 15.5 

 Spotted black (gl) 



