250 THE GROUSE IN HEALTH AND IN DISEASE 



Fig. 36. Diagram of Life-cycle of Eimeria (Coccidium) avinm. 



D-H represent Schizogony or asexual multiplication. J-L, Gametogony 



or the formation of sexual forms. N-T, Sporogony or the formation 



of cysts and spores after fertilisation. 



Epithelial cells lining the intestine of the Grouse are diagrammatically outlined. 



