308 Broughton on the Influence 



a considerable quantity of dark bro\\ n-coloured parsley with 

 abundance of fluids and chyme* In the duodenum the mixture 

 of bile was perceptible, and a quantity of chyle was thus formed* 

 Mueh yellowish-looking fluid also filed the lower intestines. There 

 was not the smallest putrid or sour odour perceptible to any 

 07ie, No increased vascularity could be traced in the intestinal 

 canal and stomach. The lungs were of a dark purple, and 

 highly gojged with blood, and the heart was full of coagulum. 



Having, by these experiments, distinctly ascertained that the 

 division of the eighth pair of nerves is not necessarily followed 

 by an immediate cessation of digestion, but, on the contrary, that 

 digestion continued in every case, excepting the last horse, so long 

 as the animal was otherwise in a condition to digest ; and, having 

 also observed that the approach of the dyspnoea is much varied 

 as to time and degree of severity, and that it will sometimes go 

 off entirely and be renewed again, it is wholly unnecessary for 

 me to pursue the galvanic part of the experiments. 



With respect to the different periods at which dyspnoea comes 

 on, it has been objected to my observations of their being in- 

 definitely prolonged, that in animals covered with fur it is 

 difficult to detect the movements of the respiratory organs, 

 and thus, in rabbits, they may escape observation. But I am, 

 nevertheless, disinclined to give up the opinion which I have 

 formed on this point ; because, although I am aware of the 

 truth of the objection to a certain degree, yet, when I observe 

 so much liveliness generally following the division of the par 

 vagum in rabbits, and continuing for certain periods till the 

 dyspnoea is apparent; and when I compare this appearance 

 with the peculiar dullness and aversion to motion and taking 

 food, together with the position of the head and body on the 

 accession of the symptoms, I am induced to believe that my 

 observations are not unfounded, and that the symptoms do not 

 in all cases come on immediately, but often at differently-pro- 

 tracted periods from the operation. If, indeed, I could have 

 entertained any doubt on the subject, that must have vanished, 

 from the observations I made (in the thirteenth experiment) 

 upon the action of the diaphragm, by means of an opening 



