FIGURES 112 AND 113 



112 Same, section 37, X 225. 



113 Same, section 38, X 225. 



4 Atrophying; embryonal vein, forming kernel in interior of developing 



and replacing lymphatic .space. 



5 Extraintimal or i)erivenous lymphatic space .surrounding degener- 



ating embryonal vein. 



