PARASITOLOGY. 



210 



O- 



Fig. 81. 



Fig. 81. — A section of liver. Fig. 80, from the area 

 marked by h, magnified 900 diameters; stained witih hema- 

 toxylin and eosin; a. liver cells showing cloudy swelling; 

 b, liver cells undergoing disintegration: c, congested blood 

 vessels, passive congestion; d, white blood cells (eosino- 

 philes) so abundant in the blood and diseased tissues in 

 this disease; e. the protozoon causing the disease. — From 

 Kaupp's Diseases of Poultry. 



