Diseases of the Alimentary Tract 73 



for the protoplasm to divide into four spherical bodies which 

 are called sporoblasts (Fig. 8, 2). Each of these sporoblasts 



SO, ' 



/(v 



Fig. 8. — Diagrammatic representation of the life history of a coccidium. (After Cole 

 and Hadley.) 



then divides into two sickle-shaped sporozoids (cf. Fig. S, 3 

 and 4) . These sporozoids are then set free in the intestinal 



