SYSTEMATIC AND DESCRIPTIVE. 



245 



on nutrient gelatine spread out on a glass slide, a 

 peculiar development takes place. In twenty-four 

 hours after inoculation threads have developed ; in 

 forty-eight hours, windings of the threads are 

 observed, and in six days the threads have broken 

 up into cocci (Fig. 83). They were observed in 



FIG. 83. BACTERIUM ZOPFII. SUCCESSIVE CHANGES IN THE SAME 

 THREAD, X 740: (a) A thread-form, (l>) breaking up into rod-forms, 

 (<:) into cocci [after Kurth]. 



the intestine of fowls, especially in the contents of 

 the vermiform appendix. Inoculation of rabbits was 

 followed by negative results. 



Bacterium merismopedioides, Zopf. Forms 

 threads i 1*5 p, in thickness; these subdivide into 

 long rods, short rods, and finally into cocci. The 



