288 



DISEASES DUE TO HELMINTHS 



(i) The distribution of Filaria bancrufti and elephantiasis arabum 

 correspond. 



(2) Warix and elephantiasis arabum occur in the same districts and 

 individuals. 



(3) As varix is proved, elephantiasis arabum is inferred to be 



filarial. 



Elephantiasis of the prepuce (and legs). 



(4) Lymph scrotum often terminates in elephantiasis scrotum. 



(5) When the latter is removed there may follow elephantiasis of 



the leg". 



(6) Elephantiasis and varix are both diseases of the lymphatics. 



(7) Both are accompanied by recurring lymphangitis. 



The worm is not found because it may have died after aborting the 

 ova, causing embolism of the lymphatics. There then follow : lymph 

 stasis, reduced resistance of tissue, repeated mild sepsis and imperfect 



