POSITION OF THE BACILLI. 263 



method. Regarding the presence of spores practically 

 nothing is known, though some of the unstained or stained 

 points may be of this nature. We have, however, no 

 means of testing their powers of resistance. Leprosy bacilli 

 are non-motile. 



Position of the Bacilli. They occur in enormous num- 



FIG. 71. High-power view of portion of leprous nodule showing the 

 arrangement of the bacilli within the cells of the granulation tissue. 



Paraffin section ; stained with carbol-fuchsin and methylene-blue. 

 x 1 100. 



bers in the leprous lesions, especially in the tubercular 

 form. In fact, so numerous are they that the granulation 

 tissue in sections, properly stained as above, presents quite 

 a red colour under a low power of the microscope. The 

 bacilli occur for the most part within the protoplasm of the 

 round cells of the granulation tissue, and are often so 



