EXPERIMENTATION AND PHYSIOLOGY 



with a little silver tube opening into the stom- 

 ach and closed with a cork ; and the dog always 

 seems proud of its possession. The brilliant 

 studies of Pawlow, of St. Petersburg, made 

 upon animals, have resulted in an understand- 

 ing of the laws governing the secretion and 

 action of the digestive juices. It was he who 

 placed upon a scientific basis our knowledge of 

 the influence of the mind and nervous states 

 upon digestion. 



Experimental studies of digestion have re- 

 sulted in the identification of the digestive 

 ferments and an understanding of their action. 

 The effects of alcohol, tea, and coffee, and other 

 fluids have been carefully studied. What has 

 been done with gastric digestion has also been 

 done with the digestive process in the intestine. 

 The researches of Meltzer, Cannon and Herter 

 of America, of Bayliss and Starling of Eng- 

 land, and of many other physiologists, have 

 placed the knowledge of the physiology of the 

 intestines upon a scientific footing. 



The knowledge that has been acquired 

 concerning the liver, the pancreas, and the 

 other digestive organs is very great and of 

 much practical value in the prevention and 

 treatment of diseases. The functions of the 



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