PLATE XLVIII. 



FIG. 115. Peritoneal surface of centrum tendiueum of rabbit, treated wi h water and then coloured in silver. 

 In the middle of the preparation a lymph vessel, I, appears below the surface endotheliuui, i.e., the system 

 of lines of interstitial substance. On both sides of the lymph vessel are tendon trabeculw, t. The endothe- 

 liuin which covers the lymph channels consists of smaller elements. Five true stomata are shiwn which pass 

 through the "vertical lymph channels" into the lymph vessel below. Two of the stomata are open, and 

 three collapsed; all are surrounded by germinating endothelium. p. HI. (Oc., 3; Obj., 5. Tube not drawn 

 cut.) 



FIG. 114. Similar preparation. . A wide lymph vessel which can be seen through the surface endothelium a. 

 An artery, d, and a nerve trunk, e, pass through the lymph vessel (perivascular lymph vessel) c, and within 

 the field of vision are ten distinctly open true etomata 6. The surface eudothelium bordering the stomata is 

 germinating, p. 112, (Oc., 3, Obj., 5.) 



