i84 



BIOLOGY OF THE LABORATORY MOUSE 



Abortive gland 



^4/ 



Normal connective 

 tissue 



Fig. 96. — Adenocarcinoma (variable type) of the mammary gland ( X ^00) 





r36t^?r^,-^-i?!*w^-« -•*^v- '^^^v ^'^S" 

 -.. -'3*' v^ • *- ^ ^^\ ^^^ i^-T. v**3 



Fig. 97. — -Adenocarcinoma (variable type) of the mammary gland (X200). This 

 shows a greater gland forming tendency than is seen in Fig. 96. There is also more 

 abundant stroma and greater mitotic activity, g.f., gland-like formations; lu., lumen; 

 m.f., mitotic figure; str., stroma. 



