314 



DISEASES DUE TO HELMINTHS 



The disease was perhaps known and treated bv the ancient 

 Egyptians 1,550 years B.C. 



U 



WHl 



VI 



»!,/, male and female Ankylostomes : a, head of Ankylostovium ducknale ; 

 b, head of Necator americamis. 



It was rediscovered by Dubini in Milan, a.d. uS^cS. 



The parasite is a white cylindrical worm living in the upper 

 intestine, the jejunum chiefly, retaining its position with its four 

 hooks and two conical teeth, which are carried about the mouth. 



