Smithsonian Report. 1952. — Schwartz 



Plate 1 



1. Cattle-Blood Smear Showing Two Pear-Shaped, Dark-Staining Organ- 

 isms in Some of the Red Blood Cells 



These organisms are the causative agents of tick fever or piroplasmosis. (Greatly enlarged.) 



■: 



2. Trichinae Encysted in Muscle 

 Tissue 



3. Trichinae Digested out of 

 Muscle tissue 



(Enlarged.) 



(Enlarged.) 



