H. E. Jordan 09 



The remaining 39 histories of parent-child "transmission" may be 

 summarized thus : 



father to son ... ... 



fiither to daughter ... 10 

 mother to son ... ... 13 



mother to daughter ... 7 

 The numerical variation is small, and of no significance as indicating 

 prepotency of one or the other parent to transmit the character differen- 

 tially to either sex. 



Adding to these numbers those from cliarts 8 to 16 the same 

 conclusions become still more obvious, thus : 



father to son 9 + 8 = 17 



father to daughter ... 10 + .5 = 15 



mother to son... ... 18-1-6 = 19 



mother to daughter ... 7 -H 5 = 12 



The following table summarizes the data respecting fraternities of 

 four or more individuals: 



Numher of leftliamJed and rlghtlianded in fraternities of 

 four or more individitals. Parent-child histories. 



