THE LAWS OF ORGANIC 



canal alimentaire et les poumons."* He ex- 

 plains the affection of the larynx, but the other 

 consequences are difficulties which he does not 

 solve. 



CCLIL From the great and general disor- 

 ders of the viscera, of the thorax and abdomen, 

 it is not easy, unless we seize the first and prin- 

 cipal agent in the chain of causes, to account for 

 the extraordinary effects produced. Impeded 

 digestion, congested lungs, and a vascular state 

 of the heart, have been described by the greater 

 number of those who have prosecuted the pre- 

 sent subject ; and the following experiments, 

 from their conclusive character, will show why 

 such simultaneous results occur, and what is the 

 nature of the relations existing between the dif- 

 ferent organs. 



The following experiments are to prove these 

 propositions : 



1. That the function of the par vagum, and its various 



branches, is to regulate the ingress and egress of at- 

 mospheric air in the act of respiration. 



2. That nervous influence is not necessary for the secre- 



tion of gastric juice. 



3. That the first cause in the disturbance of the organic 



functions is to be referred exclusively to the injury 

 done to the laryngeal nerves, by which means the 

 usual quantity of air does not enter the lungs. 



4. That the death of the animal arises from the three 



causes stated by LEGALLOIS. 



* LEGALLOIS, p. 231. 



