368 



ARTHUR WILLIAM MEYER 



were iieA^r seen. In fact, the lymphocytes not infrequently 

 are so closely packed in the lymphatic areas that scarcely any 

 vessel could be seen in them. Many of the portions also con- 

 tained follicles which were densely crowded together directly 

 beneath the capsule or along some of the large trabeculae. The 

 absence of fat in hemal nodes is striking. 



All of the foetal subcutaneous nodes examined microscopi- 

 cally in 1908 contained no lymph vessels whatever but some 

 of them contained a more or less continuous empty subcap- 

 sular space or sinus. It is obvious that the nature of this space 



could have been open to a double interpretation were it not for 

 the fact that all of the subcutaneous hemal nodes of adult 

 bovines had been found to be in connection with the veins 

 only. To be sure, this fact does not necessarily exclude the 

 questionable possibility assumed by v. Schumacher '12, that 

 lymphatic vessels may grow into nodes and then disappear 

 only to re-enter the nodes later. 



Some of them contain practically no extra-vascular erythro- 

 cytes. Many foetal nodes look red to the naked eye, however, 

 because the blood vessels are relatively large. But the most 

 striking thing about these mimite foetal nodes, is the presence 



