Twelfth Annual Report of the Bureau of Science— 1913.] 



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Fig. 1. 



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Fig. 2. 



Fig. 3. 



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Fig. 4. 



Fig. 5. 



PLATE XVII. STAGES OF A PIROPLASIVIA AND OF A TRYPANOSOIVIA OF CATTLE AND 

 THE SCHIZOGONY OF TRYPANOSOIVIA EVANSI IN THE SPLEEN OF THE VERTEBRATE 

 HOST. 



