412 



BLOOD DISEASES. 



mind an explanation of the lateral j)seuclopodia described by 

 Evans. 



" If we imagine that we are looking down upon the parasite, 

 with the edge of the membrane towards us, one can conceive that 

 the rapid undulations, first on one side and then on the other, 

 might give an image upon the retina which could be construed 

 as due to protrusion of lateral pseudopodia. 



"I may add that I could not discover in the stained prepara- 

 tions any trace of the circlet of pseudopods, and I think the 

 undulating membrane may account for this appearance also." 



Fig. 22.— Monads in Eat's Blood. 



a. A monad in free motion among the cells, 



b. Another, attached to a red corpuscle. 



c. Angular form. 



d. Encysted form. 



e. The same seen edgeways, 



/ (md g. Normal red blood corpuscles, 

 h. Crenated red blood corpuscle. 

 i. White blood corpuscle. 



