92 THE MENDEL JOURNAL 



a son, is said to be strong. No. 2, a daughter, suffers 

 from meningitis, epilepsy, and tubercular (phthisical) 

 knee joints. No. 3, a son, is afflicted with severe 

 headaches. No. 4, a son, suffered a severe nervous 

 illness, the nature of which is unknown. No. 

 5, a son, has had meningitis and paralysis, and is 

 mentally dull. No. 6, a son, has had St. Vitus' dance. 

 No. 7, a daughter, has suffered from meningitis, and 

 is very irritable and subject to headaches. No. 8 

 (whether son or daughter is not stated) has suffered 

 from paralysis and other nervous diseases. Nothing 

 appears to be recorded of No. 9. No. 10, a son, is 

 dead, and had paralysis in the legs. 



No. 6, the boy who is afflicted with St. Vitus' 

 dance, is the one whom it is recommended should be 

 cared for out of public monies, by public officials, in 

 public institutions. 



Now we are chiefly interested for the moment in 

 the Mendelian aspect of the heritage of this family. 

 If we take a general view of the case we shall notice 

 that we can reduce the pathological factors in the 

 family history to two, if we express them in a general 

 way. There is the tubercular taint manifested by 

 phthisis, tubercular knee-joint, and meningitis. There 

 is the nervous lesion indicated by mania, religious 

 fancies, St. Vitus' dance, severe headaches, paralysis, 

 and epilepsy. We may therefore say that we are 

 dealing from the Mendelian standpoint with two 

 pairs of alternative characters, i.e., the tubercular 

 condition and physical normality as one pair, and the 

 nervous lesion and nervous normality as the other. 



