64 



the necessary exaruinatioDS. It is obvious that if the conclusions 

 foreshadowed by the Italian anatomists prove correct, that criminal 

 and congenital lunacy may owe, part of their origin at least, to a 

 diminished vascular supply of the cerebral cells, consequent on a 

 diminished calibre of the blood vessels taking part in the formation 

 of the circulus arteriosus (Willisi). 



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