IG IMMUNITY IN HEALTH 



lymphatic glands must surely confer some measure of 

 protection. And, perhaps, some of the ingested and 

 consequently attenuated organisms pass via the sub- 

 epithelial and interstitial lymphatic glands into the 

 blood stream and so to those other manufactories of 

 anti-bacterial weapons, namely — the red marrow and 

 the spleen. 



