72 ANATOMY OF THE LYMPHATIC SYSTEM. 



died in consequence of tuberculosis. The liver, spleen, lungs, and 

 lymphatic glands contained very numerous tubercles, while the 

 omentum and the mesentery were disproportionately little affected, 

 and the centrum tendineum least of all. The same conditions were 

 found on the mesentery and omentum of cats, which presented the 

 macroscopic appearances of tuberculosis, viz. grey nodules dissemi- 

 nated over these membranes, especially over the mesentery. These 

 were cases of chronic inflammation of the mesentery and omentum 

 in consequence of a parasitic immigration from the alimentary 

 canal. 



Similarly I have found the abnormal germination of the endo- 

 thelium round the stomata, especially round those of the omentum of 

 the rabbit whose omentum exhibited signs o^^hronic inflammation 

 in consequence of the presence of parasites in the lymphatics. 



I have, however, also induced artificially the abnormal germina- 

 tion of the endothelium on true stomata and pseudo-stomata on the 

 omentum and centrum tendineum of the rabbit. If a few c.c. of 

 starch and oil or starch and water are injected into the abdominal 

 cavity of a well-nourished rabbit, and if the examination of the 

 omentum and centrum tendineum is undertaken not earlier than 

 four to eight weeks, we shall find that the alteration of the endo- 

 thelium is now limited to those places only where we have become 

 acquainted with stomata and pseudo-stomata, the germination of the 

 endothelium being here very considerable. 



Lastly, I must mention the germination of the endothelium 

 round the stomata of the mesentery and mesogastrium of a compara- 

 tively large number of female frogs during the winter months. In 

 these cases there appeared also on the septum of the cysterna-lym- 

 phatica-magna abundant germination of the endothelium round the 

 stomata on the peritoneal surface, as well as a germination of the 

 endothelium spreading from these points. It may be remarked by 

 the way that the peritoneum of the ovaries and oviducts, and that in 

 the neighbourhood of the liver, were in these cases covered with more 

 or less numerous false membranes, 



