MENTAL CHARACTERS 



103 



Thus if we use the term inheritance at present simply 

 to express the fact that a more or less definite 

 numerical value can be attached to the average amount 

 of resemblance between any specified pair of relatives, 

 we see that a considerable number of physical characters 

 appear to be inherited at approximately the same rate 

 in men and in animals. 



More than this, Professor Pearson has shown, by 

 the use of the same method as was applied to the case 

 of physical characters not quantitatively measurable, 

 that the average resemblance in mental characteristics 

 between pairs of brothers, pairs of sisters, and pairs 

 made up of a brother and a sister, can be expressed 

 by the values given in the following table : 



TABLE VII. (FROM PEARSON). 



A sample of the collected facts from which this 

 information is arrived at is given in the table on 

 p. 104. 



