348 



ve'!i:ki.\,\kv pathology. 



gins to multiply and to eliminate those products that stimulate 

 the surrounding connective tissue and endothelial cells to in- 

 crease in number, and, at the same time, exerts a positive chemo- 

 tactic action upon leucocytes. If the influence of tne bacterial 

 products is exerted upon the connective tissue and endothelium, 

 the resulting tubercle will be composed of connective tissue cells 

 and endothelial cells, and if the influence of the bacterial pro- 

 ducts is of a chemotactic nature, the tubercle will contain leu- 

 cocj'tes. 



Structurally, a young tubercle consists of a cellular focus in- 

 fected with varying numbers of the Bacterium tuberculosis. As 



snull telUilii tub^T* le li\ 



ba_ilh scUti led h( II .111 



hi'patic ct'ls 



a li:\v paitialu destroyed 



