and Spinal Marrow of living Animals . 179 
afterwards saw the animals, while the described symptoms 
were taking place. 
EXPERIMENT I. 
January 24th, 1776, I divided, in a dog, one nerve of the par 
vagum, with the intercostal, on the right side. The symptoms, 
consequent to the operation, were heaviness, and slight inflam- 
mation of the right eye ; breathing with a kind of struggle, as 
if something stuck in his throat, which he wanted to get up ; 
sullenness, and a disposition to keep quiet : the pulse did not 
seem much affected, nor had he lost his voice in the least. The 
unfavourable symptoms did not continue above a day or two ; 
and on the eighth day he was in very high spirits, and seemed 
perfectly to have recovered. 
EXPERIMENT II. 
February 3d, I cut out a portion of the two nerves of the 
opposite side, in the same dog ; the piece might be about an 
inch long. His eyes became instantly red and heavy ; his 
breathing was more difficult than in the former experiment ; 
he was sick, and vomited frequently ; the saliva was increased 
in quantity, and flowed ropy from his mouth ; his pulse in the 
groin was about 160 in a minute ; he ate and drank, however, 
even voraciously at times, and had stools ; he never attempted 
to bark or howl, probably because he did not feel great pain ; 
and yet his attention was not so much disengaged from inter- 
nal uneasiness, as to be excited with ordinary causes from 
without ; in breathing, the inspirations were slow and deep ; 
Aa 2 
