THE ERGASTOPLASM IN THE MAMMARY GLAND AND ITS TUMOURS 1 87 





i' 



''f*^ 



■^ 



rf- 



Fig. 14. Two different adjacent types of cells. At bottom a "B" cell with 

 clear cytoplasm contrasts with a dense cell, the cytoplasm of which contains many 

 RNP-granules. This is not a typical "A" cell, because the nucleus is not festooned 

 and the nucleolus is still conspicuous but coarseness of chromatin is incipient. 

 This cell may be considered as intermediate between the A and B "extreme" 

 types. X 12 250. 



