119 



is small, although the length of the tubular outgrowth may 

 be extensive. 



A 



'■: !■: 



TVfJ^ 



#' 





.'*^ 





^%' 



.v,..v 





4 







i5^ 



'"yi^^/.- -4^;^ Jfc^ 



/^^,- 



-.v;i<-r:^^:- 



Fig. 16. 



Experiment ITMl^ — 2. 17 passage of a pure culture of epithelium growing 



in a membrane. Fragment cultivated embedded in the clot. X about 80. 



From The Journ. of Exp. Med. 1922, XXXVI, 285. 



When we intentionally embed the epithelial tissue in the 

 plasma clot, the growth becomes very irregular to begin 



4 

 4. 



