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AUTHl'K WILLIAM MKVER 



and coinniiiiiictite with the periphery and interior but plexus 

 formation is absent in or near the node. The cellular differentia- 

 tion has greatly ad^^anced but germinal centers are still absent 

 and there is as yet no indication of the formation of the venous 

 lacunae which are so common in nodes from mature animals. 



Fig. 13 Subcutaneous hemal node from foetus of 30 cm. X 97. 



Vascular and Ijonphatic plexuses are again absent in this node 

 which is half a millimeter in diameter. It was removed by 

 naked eye inspection from a foetus of 30 cm. The typical 

 pycnotic lymphocyte is the prevailing leucocyte in this node 



