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 (Sectiim, 

 haematein). 



Fig. 4. — Transverse section of salivary gland shewing sporozoits 

 in silu (haematein). 



Fig. 5. — Sporozoits from the salivary gland (Romanowsky 

 stain). 



