PLATE 1 



EXPLANATION OF FIGURES 



1 to 4 Drawings of graft LN 18 at successive periods in the adjustment proc- 

 ess, s, scar in host integument where incision was made. The upper edge of 

 each figure represents the anterior end of the graft. X 7. 



1 Graft LN 18 as it appeared on the second day after the operation. 



2 Same graft one week after operation. 



3 Same graft two weeks after operation. 



4 Same graft six weeks after operation, showing the maximum amount of 

 proliferated tissue that was formed. 



5 Graft LO 5 four months after the operation. Proliferation from both ante- 

 rior and posterior ends is shown, as well as amorphic regeneration over the surface 

 of the graft. The anterior outgrowth is cylindrical and twisted back on itself, 

 while the posterior one is tail-like. No absorption occurred. X 7. 



6 Graft LN 62 four and one-half months after the operation. The ventral 

 edge is unattached and has shrunken back toward the eye-^a condition which 

 persisted. X 6. 



412 



