Hygienic Laboratory, Bulletin 46. 
Plate X. 
'lOOMJ. 
Horizontal section of yoxing female mite from an infected rat, showing parasites, sp. hi., 
sporoblasts (not yet divided into sporozoites) in large cysts, with indistinct outline; 
sp., sporont. Lettering as in Pis. V to IX. Drawn with camera lucida. Stained with 
iron hematoxylin. 
