94 MICROBES, FERMENTS, AND MOULDS. 



Spirillum and Spirochoete only differ from each 

 other in the number and approximation of their 

 spirals. Spirochcete Obermeieri is found in the blood 

 of those affected by recurrent fever; S. plicatile, 

 which is found in stagnant water, amid Oscillaria, is 



Fig. 51. Different forms of microbes, or bacteria: a, b, c, d, Jffcrococcus of various 

 forms ; e, the short Bacterium ; f, the short Bacillus ; k, Leptothrix or long 

 bacillus: I, Vibrio, dividing by fission; m, Spirillum; o, Spirochcete; p, Clado- 

 thrfo, etc. (from Zopf : highly magnified). 



perhaps only the parasitic form of those algae, and 

 has often been regarded as the cause of marsh fever. 

 Spirillum is also found in infusions (Fig. 51, m, o). 



Finally, Sarcina ventriculi, so different in form 

 from other microbes, is found in the fluids of the 

 human stomach, in the blood, and in the lungs, in the 



