,[i4] 
fide, below the faUe ribs, which was mojfl violent 
when (he turned the trunk of her body forwards 
round towards the left, or lifted up her right arm. 
Now if the pins, being forced out of the ^fopbaguSy 
penetrated the ferratiy rhomboides, and trapefius mul- 
cies on the right lide, this fymptom mull nccdlarily 
happen. For the jerraii being mufcles of refpiration, 
and the ferratiis fuperor pojiicus attached to the 
fecond, third, fourth, fifth, and fixth ribs; and the 
Jerratm inferior pojiicus being attached to the tenth, 
eleventh, and the extremity of the twellth ribs, a 
pain in the fide will be produced by the conllant 
efforts of refpiration. And the ofiice of thefc 
mufcles being to elevate the ribs, and drawdown the 
arm, the pain in the fide will be mod fenfibly felt 
whenever the right arm is lifted up ; becaufe then 
the extremities of thefe mufcles, attached to the ribs, 
will be mod tenfe. For although a wound may be 
given to a mufcle in its mod fiefhy part, yet the irri- 
tation occafioned by it will exert itlelf mod forcibly 
in that ’part where there is the greated tenfion. 
The ?~ho?7ihoidcs mufcle lying upon the Jerratiis 
fuperiory and the trape/ius being incumbent upon it, 
and all clofely connected by the cellular membrane, 
they mud all be in fome degree adedfed by refpira- 
tion. But the office of the rhomboides and trapejius 
mufcles being to draw the arm downwards, and 
backwards, the pain in the fide would be increafed 
whenever the right arm and trunk of the body were 
turned forwards towards the left fide. 
Being thus, as we may fuppofe, arrived at the true 
caufe of the pain in the fide, the cough comes next 
under confideration. And this will be found to pro- 
2 cecd 
