250 



PARASITIC DISEASES 



FlQ. 



71. 



Fio. 



Fig. 71. — Tapeworm larvae in liver {Echinococcus polymorphus). 

 Fig. 72. — Tapeworms. 



infection, and should not be used as a water supply for cattle 

 and sheep. In sections where the disease is prevalent, sheep 

 should not be pastured on low, poorly-drained land. Such land 



