3i8 



SCIENCE PROGRESS 



respectively. No child is born insane, but it may be born with 

 an insane or neuropathic tendency ; certainly it may be born 

 mentally deficient owing to failure of development or arrest of 

 growth of the grey matter of the brain. Such mental defectives 

 are low-grade imbeciles and idiots, in whom in my last lecture I 

 demonstrated a correlation of deficiency of mind and the material 



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12 



14 



Fig. s 



No. 



The above pedigree shows the transmission of insanity, immorality, and violent 



temper, 

 i, the grandmother, was immoral. Of her children, No. 2, an engine-driver, was "a man of violent 

 temper who smashed things on a wholesale scale at home. He died with the delusion that he was 

 going to heaven on the footplate of an engine." No. 3 was also a man with a violent temper, dangerous 

 to himself and others, who eventually died from general paralysis. The daughter, No. 4, was criminally 

 immoral ; she had an illegitimate child, but no children by her marriage. The children of No. 3 

 are as follows: Nos. 5 and 6, both men with violent tempers, drunken and immoral; No. 7, a 

 daughter, criminally immoral, who eventually was detained in Bethlem for a period. No. 8 is a 

 woman with a very violent temper, smashes things, and has attacked her husband with a poker, 

 etc. ; has tried to commit suicide by poison and once by hanging ; gushes to every man, but repels 

 her husband. The husband asks, "Is she mad, or bad, or both?" The husband is a healthy, 

 robust man, who comes from a good healthy stock. The children were five in number ; two survive 

 (Nos. 11 and 14), and these fortunately resemble the father ; they are healthy, robust and energetic. 

 The first-born, No. 10, was a boy resembling his mother ; he was nervous, reserved, lacked mental 

 energy, and was prone to somnambulism and night-terrors, which existed in his mother's family ; 

 he died under an operation at the age of 12. No. 12 was the image of his father, but died from 

 measles when 10 months old. No. 13 was nervous and resembled his mother; at 19 months he died 

 from whooping-cough. 



basis of mind — the grey matter of the brain. But the higher- 

 grade imbecile, the epileptic, and the insane adolescent do not 

 usually show sufficient obvious defects of structure (even by the 

 aid of the microscope) to satisfactorily account for the mental 

 disorder, but this may well be because methods have not yet 



