PLATE II 



Fig. i. Young zygotes of the benign tertian parasite. 

 Fig. 2. Young zygotes of the malignant tertian parasite. 



Fig. 3. Mature zygote, outside epithelium of mid-gut (Section, 

 haematein). ? 



Fig. 4. Transverse section of salivary gland shewing sporozoits 

 in situ (haematein). 



Fig. 5. Sporozoits from the salivary gland (Romanowsky 

 stain). 



