The Influence of Roentgen Rays, Radioactive Substances, 

 Light and Electricity upon Metabolism 



. e Thomas Ordway, Arthur Knudson 



Roentgen Rays and Radioactive Substances Introduction Measurement 

 (Standardization) of Radioactive Substances and of Roentgen Rays 

 Distribution and Elimination Effect on the Blood and Blood Forming 

 Organs Effect on Immunity Effect on Normal Metabolism Effect on 

 Metabolism in Disease Constitutional Effects Theories of Action 

 Light Electricity. 



