IN RATS AND GUINEA-PIGS. 



49 



31. Character as regards nose spots of the young of animals of Series H 

 (head spot series). None of the parents bore nose spots. 



*By an NS female, this same male (1716) had ten young, three of which bore nose spots. The average number 

 of spots other t h a n nose spots borne by ihe NS young was 2.6; by the remaining young, 3.7. 



Data for curves (figs. 2 to 5). 



