PATHOGENIC BACTERIA 



121 



which he thought had a direct connection with the disease. 

 But this has been disproved and the cause has been found 

 in a protozoon which has been called Spirochaeta pallida, 

 which see (p. 194). 



Bacillus of Glanders (Bacillus Mallei (Lbffler-ShUtz) ; 

 Rotz-bacillus) . Origin. In the "farcy buds" or little 

 nodules of the disease, by Loffler and Shiitz, in 1882. 



Form. Small slender rods, about the size of the tubercle 

 bacillus. The ends rounded. Never appearing in large collec- 



Fig. 61. Bacillus of glanders from a culture upon glycerin agar-agar (x 1000) 

 (Frlinkel and Pfeiffer). 



tions, usually singly. Spores are said to exist, but this is doubt- 

 ful (Fig. 61). 



Properties. The rods are very resistant, living in a dried 

 state for three months and longer without any spores present. 

 They are not motile; possess, however, great molecular vibra- 

 tion. 



Growth. The growth occurs between 25 and 40 C. best 

 at 37 C.; it is very sparse upon gelatin, but on glycerin-agar 

 or blood serum a very abundant growth occurs. 



