174 TREATMENT SURGICAL. 



or the Vienna paste ; it is, however, a clumsy and painful 

 operation, and but seldom adopted in the present day. 



4. By incision into the sac. This mode is only per- 

 missible when the tumour threatens to burst externally, 

 and the integuments are red ; or when we are certain 

 that firm adhesions exist between the sac and adjacent 

 structures. 



5. Another plan, is to make an incision at two different 

 times, first down to the peritomeuin, and after the 

 wound has been dressed with lint or cotton woul for 

 some days, then the scalpel is carefully plunged into 

 the " cyst." 



