2 1 ORGA NISMS EESEMBL ING BA GILL US TUBERCULOSIS. 



nose long before they can be demonstrated in any other part 

 of the body. 



Varieties of leprosy and the nodule : The characteristic leprous 

 nodule, which very closely resembles a tubercle in structure, 

 is usually found only in the skin and subcutaneous tissues ; 



FIG. 84. 



FIG. 85. 





--. 



FIG. 86. 



FIG. 87. 



Lepra bacillus. 



but may in exceptional instances occur in the internal organs, 

 especially the spleen. One variety of leprosy is characterized 

 by extensive ulceration of the tubercles. In the so-called 

 ancexthetic leprosy the bacilli are found in the nerve substance, 

 in the spinal cord, and in the brain. They have also been 



