Michigan Academy of Science, 



Seventeenth Annual Report. 

 Plate III. 



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Protozoa from Decaying Manuro. x 1200. 



These are stained by the Romanowski method. The protoplasm is blue; the 

 nucleus, the dark round body, is red; the food vacuole, the irregular body, filled 

 with food, is of a dark blue. The surrounding organisms take the blue stain. 



