BACTERIUM TUBERCULOSIS 



151 



nation of the bacteria throughout the body, with the 

 production of innumerable miliary tubercles every- 

 where. Among the special forms of tuberculosis are 

 meningitis, hip disease, and spine (Pott's) disease. . The 

 first is a long-standing inflammation in which the cover- 



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FIG. 42. Tuberculosis of the lung. (Stengel.) 



ings of the brain and cord and the superficial layers of 

 these organs are involved in an extensive inflammation. 

 The hip and spine diseases arise when the bacteria get 

 into the soft marrow of the bones, and extend to the 

 joint and tissues about it. 



