H. E. Jordan 



71 



Hereditary transmission from grandparent to child appears in 44 

 blanks. The distribution may be summarized thus : 



Grandfather to son's son ... 



„ „ „ daughter 



„ „ daughter's son ... 



„ „ „ daughter 



Grandmother to son's .son ... 



„ „ „ daughter 



„ „ daughter's son ... 



„ „ „ daughter 



The summary seems to show that a grand-daughter rarely inherits 

 lefthandedness from her mother's father, and a grandson fi-om his 

 mother's mother ; but the disproportion is due more likely to the 

 relatively small number of histories as the grosser summaiies show 

 (second and third columns). In this group again nothing appears 

 sufficiently striking to indicate prepotency on the part of one or the 

 other parent (grandparent). 



The fnllowing table summarizes the data for this group where the 

 fiaternities are larger than three individuals : 



Grandparent — cli Ud histories 



