REACTION OF LYMPHATIC ENDOTHELIUM 



433 



May 8 



4:45 P M. 



^© 



O' 



B. V. 



B. V. 



!/'■ 



t 



4 



OC? o May 10 



pi 10:00 A.M 



Fig. 5 Illustrates the reaction of lymphatic capillaries toward an injec- 

 tion of cream. The first sketch was made immediately after the injection. The 

 second, made seventeen hours later, shows that the small globules of cream have 

 all been taken up by leucocytes. One of the lymphatic capillaries is seen to 

 have grown, somewhat rapidly, toward the site of injection. In the last draw- 

 ing, the lymphatic has extended still further and the pigmented leucocytes are 

 wandering off, a number of them in the direction of the growing l3^mphatic 

 sprout. As in figure 2 the blood vessel sprouts show no definite reaction toward 

 the injected substance. B.V., blood vessel; p.L, pigmented leucocyte; c.l., 

 clear leucocyte. Enlargement = 140x. Drawn with camera lucida. 



