176 MENDELISM 
Vom Vater hab’ ich die Statur, 
_ Des Lebens ernstes Fuhren, 
Vom Mutterchen die Frohnatur 
Und Lust zu fabulieren.’ 
In such a case we must always look upon the corre- 
sponding character of the second parent as existing 
in the offspring side by side with the character which 
finds expression, only the former is overpowered by 
the latter, and forced to remain invisible. That the 
hidden character is nevertheless actually present is 
shown by the fact that a feature characteristic of a 
particular grandparent, which did not appear in the 
parent, may reappear in the child. For instance, a 
characteristic masculine feature of the maternal grand- 
father may thus make its appearance in the son. 
It is found that any individual may be looked upon 
as being to a large extent an aggregation of separate 
characteristics. In a pair of allied races a great 
number of the separate characters are the same in 
the two cases, the distinction between the two forms 
depending upon a few definite features only. The 
majority of salient characteristics are identical in such 
a pair, but some of the corresponding characters are 
opposed. Thus in different races of mankind com- 
plexions may be dark or fair, eyes blue or brown, 
hair straight or curly, and the like. Now the off- 
spring of parents which had smooth and curly hair 
respectively might exhibit smooth or curly or inter- 
mediate (wavy) hair, according as one or the other 
character, or both in combination, made its presence 
obvious ; for in the simplest cases both will necessarily 
