THE SKIN AND ITS APPENDAGES. 79 



To render the glandular mammary tissue clearly recognisable 

 from the surrounding connective tissue, Stiles adopted the method 

 of immersing the mamma in a 5°/ of HN0 3 for two days. The 

 glandular tissue becomes of a dark yellow tint, and thus can be 

 detected even in minute quantities from the surrounding tissue 

 of mesoblastic origin. 



