Manchester Meinoi}-s, Vol. I. (1906), No. 11. 33 



delism ; and that between the idea conveyed by the 

 answer and the Law of Ancestral Inheritance does not lie 

 only in the fact that while the question and Mendelism 

 deal with individuals, the answer and the Law of Ancestral 

 Inheritance refer to masses. The idea implied in the 

 question is like Mendelism, because it suggests what 

 Mendelism effects, the discovery of a hitherto unsuspected 

 order in familiar phenomena ; while the truth conveyed 

 in the answer is like the biometric treatment of heredity, 

 because it is the accurate statement of a relationship that 

 you already know to exist. Everyone knows that the 

 sum-total of children are more or less like the sum-total 

 of their parents ; the biometrician accurately measures 

 the degree of this resemblance. 



The answer you expect is physiological. The answer 

 you get is statistical. 



