105 



FiJ..5 



Fi4,-6 



Fi«.. 10 



Fid. 12 



Fi^.lS 



Fi«.. 14 



figures are enlarged about 100 times and drawn by means of a camera 

 The epithelium is made darker. Figs. 1, 2, 3 and 4 are from Piper II (see 

 I) while the remaining figures are from PiPER I (see Diagram II). 



"Linsen" form. Left 2. 



"Zapfen-Kolben" form. True mammary Anlagen. Left 4. 



"Linsen" form. Left 6. Epithelium artificially separated from cutis. 



Inguinal proliferation from left side. 



Slight concavo-convex thickening. Right 1. 



"Zapfen" form. Plano-convex type. Eight 2. 



"Linsen-Zapfeu" foi-m in axillary region. Right 5. 



"Zapfen" form. Right 8. 



"Zapfen" form. Right 13. 



"Kolben" foi-m. True mammarj^ Anlage. Right 15. 



"Zapfen-Kolben" form. Left 2. 



"Zapfen" form. Left 5. 



"Zapfen" form. Left 20, The most caudally situated Anlage. 



„Hügel" form, inguinal proliferation from the left side. 



