WEISMANN'S THEORY 145 



divided up as follows: 5% a", 10% a"' and 5% a""; 

 the resultant type will be designated as A". Let us 

 suppose on the other hand that the same character is 

 represented in the mother by 6% a"', 30% a", 5% a' 

 and 5% a""; the type expressed by the mother can be 

 designated as A'"; in the product, after the liberation 

 of polar particles, the determinants of type a" will 

 be in the proportion of y 2 (80 + 30) or 55% while 

 the determinants of the mother's a'" will be in the 

 proportion of l/ 2 (60 + 10) or 35%. The child will 

 therefore express the type A" and resemble the father. 

 Still the determinants of other types may subsist in 

 the child and cause it to resemble its grandfather. 

 The following diagram vizualises the process which 

 may bring about this resemblance. (Dark faced 

 type indicates expressed characters, italics indicate 

 idants containing repressed characters which are only 

 potentially in existence, and bracketed letters indicate 

 the idants eliminated through the liberation of polar 

 particles.) 



Grandfather Grandmother 



a h c d {e f g k) m n o p (q r s t) 



; ■ , 



Son Son's Wife 



akJ(mnop) v oc y z (« y S) 



, . « , 



Grandson 

 a b c d (v x y z) 



