no 



RESULTS. 

 AIUt a prridd ol lalciicv 'A <S days Ihc epithelium 

 coiiinicnced to jfi'ow. l' li 1 e n li ii I h ' '" also found, that 

 SOUK' liuu' elajjses bt'l'orc Ihc cpilheiiuui begins to grow. 





Fig. 9. 



Photograph of a Hving culture of epithelium 6 weeks old. Shows the 



characteristic growth for epithelial cells. < about 135. 



From The Journ. of Exp. Med. 1922, XXXV, 367. 



To begin with, the epiliieliuui grows with great irrcguhirily, 

 but with proper care, it soon commences to gi"ow verj' 

 abundantly. It will now be seen, that after a few hours 

 incubation, the epithelium cells grow out from the fragment 



