396 MALIGNANT (EDEMA. 



uniform throughout or segmented at irregular intervals. 

 In cultures on solid media it chiefly occurs in the form of 

 shorter rods with somewhat rounded ends. The rods are 

 motile, possessing several laterally placed flagella, but in a 

 given specimen, as a rule, only a few bacilli show active 



I l 



\ 



FIG. 100. Film preparation from the affected tissues in a case of 

 malignant cedema in the human subject, showing the spore- bearing 

 bacilli. 



Gentian-violet. x 1000. 



movement. Under suitable conditions they form spores 

 which are usually near the centre of the rods and have an 

 oval shape, their thickness somewhat exceeding that of the 

 bacillus (Figs, i oo, i o i ). The bacillus can be readily stained 

 by any of the basic aniline stains, but loses the colour in 

 Gram's method, in this way differing from the anthrax 

 bacillus. 



