XX LIST OF ILLUSTRATIONS 



Pig. ■ Page 



209. Plasmodium max, stages in development of the gametocytes 444 



210. Plasmodium malaria, asexual cycle 445 



211. Plasmodium malaiicE, gametocytes 445 



212. Comparison of Culex and Anopheles 447 



213. Babesia higemina 448 



214.. Gregarina hlattarum 450 



215. Nosema bombycis 451 



216. Paramecium caudaHim 452 



217. Paramecium caudatum and Parammcium putrinum 453 



218. Opalina ranarum 454 



219. Balantidium coli 455 



220. Intestinal wall infected with Balantidium coli 455 



221. Sphmrophrya pusilla within a paramaecium 456 



