METHODS OF ABSORPTION. 



199 



absorption was attributed to the lymphatics. However, ample 

 evidence exists to show that substances capable of absorption can 

 make their way into the bloodvessels of any part not protected 

 by an impermeable covering like the horny layer of the skin, 



FIG. 93. 



Section through the Intestinal Wall in the neighborhood of the grouped 

 lymph-follicles (/) (Peyer's patch), showing the upper narrow (6) and the 

 deep wide (c) lymphatic plexuses. 



and thus be carried directly to the general circulation. The share 

 taken by the bloodvessels in interstitial absorption in the tissues 

 is not defined, and when no impediment to the lymph-flow exists 

 is probably very small. 



In the absorption from the alimentary tract, however, the 

 bloodvessels appear to take a considerable part. 



How far the tissue interspaces and the local lymph-channels, 



