IN RATS AND GUINEA-PIGS. 



39 



Tabi,B 9. — Relation between distribution of pigment spots in i^S guinea-pigs oj 

 group D2, and in their parents. 



Tabi,e 10. — Combination oj the jour parts oj table p, showing spot inheritance in 

 group Z?2, 178 individuals (7/2 observations). 



