SECTION III 



The Thymus Gland and Its 

 Diseases 



Anatomy, Embryology, Comparative Anatomy and 



Histology E. V. Cowdry 



Anatomy Size Gross Morphology and Relations Blood Supply Lympha- 

 tics Innervation Embryology Origin Development Differentiation 

 and Growth Involution Variation under Different Conditions Com- 

 parative Anatomy Histology The Cortex The "Small Cells/' their 

 Origin and Xature The Medulla Mode of Secretion. [From the 

 Anatomical Laboratory, Peking Union Medical College.] 



