No. 588] INHERITANCE OF SPOTTING IN MICE 



729 



estimates of two or more investigators on any one animal 

 to be surprisingly exact and fully as satisfactory as any 

 other system of grading. 



table L 



III; 



From Chart I it will be seen that 44 of the 75 young 

 obtained fall in the class between and 5 per cent, of 

 dorsal pigmentation. These are the black-eyed whites. 



Chart 1 



