302 OPERATION, ETC. 



the expansion of the lungs, a small wound will therefore be 

 eligible, and especially as the fluid requires not a large vent 

 for its discharge. Lastly, as to the manner of performing the 

 operation, I should think it more advisable to do it with a 

 knife, by a cautious dissection, than by the more coarse and 

 hazardous method, the thrusting in a trocar. 



