Scientific Proceedings. 



5i 



The interference with the circulation must be such as to produce 

 a lesion of the whole organ so that not only will the organism be 

 deprived of the normal function of the pancreatic cells, as after 

 extirpation of the organ, but also every cell will become diseased 

 and begin to act abnormally and injuriously to the organism. 



36 (179) 



The pathology of function ; an experimental laboratory course. 

 By Haven Emerson. 



[From the Physiological Laboratory of Columbia University, at the 

 College of Physicians and Surgeons. ~\ 



To fill the gap between physiology and histology on the one 

 hand and pathology as usually taught upon the other, the follow- 

 ing experimental procedures were given in a three weeks course 

 on some common disorders of function and the physiological 

 methods of detecting them and treating them. 



1. Peripheral arterial blood pressure in man varied by the follow- 



ing procedures : 

 During digestion. 

 Variations of position. 

 Attempted defecation. 

 Adrenalin administration. 

 Amyl nitrite administration. 

 Faradic stimulation of nares. 

 Inhalation of ammonia. 

 Exercise. 

 Hyperpnea. 



Administration of coffee. 



2. Pericardial effusion imitated by saline solution introduced into 



the pericardial sac. 

 Myocardial changes produced by injecting alcohol into the 

 heart muscle. 



3. Aortic stenosis. 



4. Aortic regurgitation. 



5. Pleural effusion. 



