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

F. W. Mott.Medicine and Eugenics.4 £3 
a similar inborn temperament, dies in an asylum or commits suicide in 
despair. I have often found in the collecting of pedigrees the association of 
insanity and suicide in a stock preceded by, or associated with, the exist­ 
ence of individuals possessing the melancholic, suspicious, brooding, self- 
centred, hypochondriacal temperament; and it is not uncommon for 
suicide of one or more members of the stock in successive generations to 
occur. Associated with these temperamental evidences of degeneracy of 
a stock may be chronic alcoholism, dipsomania, hysteria, hypochondriasis, 
exophthalmic goitre, neurasthenia, psychasthenia, migraine, fetit mal, or 
neuroses of an epileptic character, often unrecognised because not mani­ 
festing fits of the major form of the disease. In searching for the neuro­ 
pathic tendency there are, therefore, many possibilities of missing the 
inborn factor of a neurosis or psychosis though a careful inquiry be made, 
even when aided by intelligent co-operation on the part of the friends. 
Some Illustrative Pedigrees Showing Various Manifestations and Results 
of the Neurofathic Taint. 
Fig. 3.—A. B., an alien Jew, aged 54, was admitted to an asylum for 
the first time suffering with involutional melancholia; he has a sister who 
has not been in an asylum, but, as events turned out, bore the latent seeds 
of insanity. The man is married to a healthy women who bore him a large 
family; the first five are quite healthy, then comes a congenital imbecile 
4 Dim* «Skims, 
he.Fig- 3 
epileptic (cong.), then two healthy children followed by a daughter who 
becomes insane at 23, then a son insane at 22, and lastly two children 
who are up to the present free from any taint. The sister of A. B . is 
married and has a family of ten, seven girls and three boys; one of the 
females was admitted to the asylum at the age of 19, and since this pedigree 
was constructed a brother of hers has been admitted, aged 24. Half-black 
circles are insane. 
The pedigree is instructive; it shows direct and collateral heredity; it 
also shows remarkably well the signal tendency to the occurrence of insanity 
at an early age in the children of an insane and potentially insane parent. 
Fig. 4.—A very comprehensive and interesting pedigree obtained for me 
by Dr. Wilson White, showing the result of marriage of a nearly sound
        

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