Full text: papers communicated to the first International Eugenics Congress held at the University of London, July 24th to 30th, 1912

76Section I.D. F. Weeks. 
Case 4286. 
Fig. 18.—The family shown on this chart is related to history 
XXXVIII. The members of these two families are leading citizens in 
the community in which they reside. In the central mating the father 
and mother are both migrainous they had nine children; three died very 
early, one epileptic and the remainder neurotic, choreic and neurasthenic. 
The mother is now paralysed, has lost the power of speech, and is unable 
to walk. E, epileptic; F, feeble-minded; A, alcoholic; M, migrainous; 
N, normal; d, died; b, born; inf, infancy. 
In these matings there was an excess of epileptic and feeble-minded 
beyond the expectations, which would seem to indicate that some of these 
tainted conditions are more closely allied with the cause of epilepsy and 
feeble-mindedness than has so far been recognised. The fact that there 
were more than five times as many epileptics as feeble-minded persons 
tends to show that these neurotic and otherwise tainted conditions are more 
closely allied with epilepsy than with feeble-mindedness. It is a significant 
fact that out of the 84 matings, in four of them both parents were migrain­ 
ous, while in 23 one parent was migrainous, and 14 of these were mated to 
alcoholics. Of the remaining 57 matings, in seven both parents were alco­ 
holic, and in 30 matings one parent was alcoholic, making a total of 44 
(14 + 30) where one parent was alcoholic. (See pages 93, 94, Tables 
VIII.-IX.)Simplex x Normal. 
Under this classification we have attempted to analyze those fraternities 
in which one parent was tainted, although not epileptic or feeble-minded, 
and the other one normal. 
In 127 fraternities there were 790 conceptions. Of the 477 classified as 
normal, mentally deficient or tainted; 130, or 27%, are epileptic; and 15, or 
3%, feeble-minded. (See pages 88, 89, 90, Table VI.) (Fig. 13.) 
At least 74 of these reported normal parents (see page 98, Table B), have 
been found by the field worker to have tainted heredity, so that these 
matings are of the type simplex x simplex, and the findings would seem 
to indicate that the matings are all of this type.
        

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