74 INPIERITANCE OF DIGITAL MALFORM ATI OrvTS IN MAN. 



TABLE III. 

 Order of Birth and vSex. 



GENERATION. FAMILY. ABNORMAL PARENT. OFFSPRING. 



I 





Unknown f 



II 



1 



Female. cJ^iTd'd'cJ' ? f ? 



III 



2 



Male. $f9d^f#^$ffc^?^ 





r 3 



Female. ^ ^' ^ f 





4 



Male, f f 



IV 



5 



Female. 9 9 f c^" f 





6 



Female. 9^9 





7 



Male. 9 f 





Male.#^9 ?c^^9 f f ^'f 



1 





Male. 9cJ^d'f 







Female. 9 d'^d' f f 



V 



^ 11 



Female, f 9 



12 Female, d^ 



13 Male. 9 ^ 



14 Female. d^iT 



Explanation of characters : — 



d^ normal male. 9 normal female, 



abnormal male. ? abnormal female. 



By referring to table iii above it will be seen that normals 

 and abnormals do alternate in a few instances; as in family 6 

 where there are three children ; in families 7, 13. and 14, where 

 there are but two each ; and in 8 where the alternation is con- 

 tinued until the eighth child. But this rule does not hold in 

 the other families. In families 9 and 10 the first three children 

 in each are normal, while in 11 the first three are abnormal and 

 the last three are normal. It will be noticed that the first child 

 is abnormal in but three of the fourteen families, and the second 

 abnormal in nine of the thirteen families. The others are about 

 evenly divided. The total number of offspring descended from 

 abnormals is sixty-nine of whom thirty-three are normal and 



