SPECIFIC MICRO-ORGANISMS 



* 



FIG. 148. Trypanosoma rotatorium in blood of a frog; drawn from a preparation 

 stained by Romawowsky method after dry fixation. The smaller form is feebly 

 stained. 



FIG. 149. Trypanosoma rotatorium. The various forms which occur in arti- 

 ficial culture. A, Crithidia form; B, trypanosome form; C, spherical form; D and 

 E, club forms; F and G, spirochete forms; H, resting stage; /, resting stage with 

 vacuole and double nucleus. (After Doflein.) 



