SECTION I 



General Considerations Regarding 

 Endocrinology 



Introduction R- G. Hoskins 



Nomenclature The Endocrin Literature Nature of the Internal Secretions 

 Conditions Determining Internal Secretions* Methods by Which En- 

 docrin Functions Are Mediated Evolution of Hormone Control Duality 

 of the Endocrin Organs The Endocrin Organs and Old Age Endo- 

 crin Factors Determining Racial and Individual Characteristics 

 Methods of Investigation of Endocrin Functions Conclusion. 



