6 THE METHODS AND 



the fact is, I have noticed that to many it is 

 difficult to assimilate as a working idea. _ We 

 are accustomed to think of a man, a butterfly, 

 or an apple tree as each one thing. In order 

 to understand the significance of Mendelism 

 we must get thoroughly familiar with the fact 

 that they are each two things, double through- 

 out every part of their composition. There 

 is perhaps no better exercise as a preparation 

 for genetic research than to examine the 

 people one meets in daily life and to try in a 

 rough way to analyse them into the two as- 

 semblages of characters which are united in 

 them. That we are assemblages or medleys 

 of our parental characteristics is obvious. 

 We all know that a man may have his father's 

 hair, his mother's colour, his father's voice, 

 his mother's insensibility to music, and so on, 

 but that is not enough. 



Such an analysis is true, inasmuch 

 as the various characters are transmitted 



