IIo BIOMETRY 
into consideration, in combination with the doubtful- 
ness of the assumption upon which the method is 
based, it seems clear that its use will only give us a 
roughly approximate view.of the correlation actually 
existing in the cases to which it is applied. Having 
made this reservation, we may compare the values 
given in the following table with those which appeared 
in Table V.: 
TABLE VI. (FROM PEARSON). 
AVERAGE PARENTAL CORRELATION. 
Human eye colour... vec eee 0°495 
Horse, coat colour... ae eee O'522 
Basset hound, coat colour see vee O°524 
Greyhound, coat colour ose es O°507 
AVERAGE FRATERNAL CORRELATION. 
Human eye colour... we see 01475 
Horse, coat colour... ey) «+ 0°633 
Basset hound, coat colour ae eee O'524 
Greyhound, red in coat ser +++ 0°700 
Greyhound, black in coat ae +. 0°660 
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 
