r 15 ] 
ceed from the fame caufe that the cough of a pleu- 
ritic perfon does, only with this difference, that in 
one the pleura and intercoftal mufcles are affedted by 
an internal inflammation, by which refpiration is 
difturbed j in the other, the malady arifes from irri- 
tation caufed by an extraneous body. The effeds 
are the fame in both; refpiration being impeded, 
nature endeavours to relieve herfelf by a cough, which 
increafes the irritation and inflammation of the parts 
obftrnded ; thefe again increafe the violence of the 
cough : and thus, each being aggravated by the other, 
the lungs are often fo violently agitated, that a blood- 
veflel burflis, and thence blood is thrown up from< 
the lungs, as was the cafe in the prefent inftance. 
Whoever confiders the communication between 
the third pair of nerves, the intercoftal, the cardiac, 
and the recurrents, together with the other nerves 
dependent upon them, will eaflly perceive the caufe 
of the violent fpafm upon the eyes, the flcknefs at 
ftomach, and the general convulflon, as being all 
primarily dependant upon the irritation given to the 
intercoflral nerve on the right fide. And it may be 
obferved, that, although both the motores oculoriim 
were affeded, yet the right eye was convulfed mod 
violently. 
From the fymptoms attending this uncommon 
cafe, it is reafonable to conclude, that the three pins 
were all of them at the fame time forced from the 
{^(ophagus into the ferrati mufcles on the right fide, 
which immediately communicated an irritation, or 
impulfe, to the intercoftal nerve, from whence arofe 
the pain in the fide, and thence the ficknefs at flo- 
mach, and convulfions of the eyes and other parts. 
But 
