96 HEREDITY IN RELATION TO EUGENICS 



This pedigree contains 22 significant matings (t. e., that 

 yield more than one child). The products of these matings 

 are summarized in Table IX. 



Table IX 



PRODUCT OF VARIOUS MATINGS IN BARR's PEDIGREE 



Neurotic X neurotic 

 Neurotic X neurotic 



Neurotic X epileptic 

 Neurotic X insane 

 Insane X normal 



Neurotic X normal 



Neurotic X unknown 



Normal X normal 



14, 17, 19, 21 16 



E, epileptic; F, feeble-minded; I, insane; N, normal; Ne, neurotic; X, un- 

 known. 



In Table IX there is no marriage of two insane persons. 

 Where a nervous person marries a neuropath, of 11 known 

 offspring 6 are normal and 5 neuropathic ; when two 

 neurotic marry, 2 out of 6 children are normal and 1 insane; 

 when an insane and a normal marry, of 13 children 4 are 

 normal and 2 insane; when a neurotic and a normal marry, 

 of 28 children 16 are normal, 9 nervous, 1 feeble-minded and 

 2 insane. Even some normal parents (of this strain) have 



I 



