264 Veteri7iary Medicine. 



the chest will give support and limit sudden expansion. In case 

 of excess of liquid the withdrawal of one-half or two-thirds at 

 a time will allow opportunity for accommodation. Haemorrhage 

 may be met by the internal use of chloride, sulphate or nitrate of 

 iron, matico, hamamelis or tannic acid, and a weak solution of 

 boric acid or other antiseptic agent may even be injected in small 

 amount into the pleural cavity. 



In obstinate and chronic cases the injection of a weak solution 

 of iodine and iodide of potassium is often of service. In other 

 cases a normal chloride of sodium solution (previously sterilized) 

 may be introduced as soon as a partial evacuation causes uneasi- 

 ness, and by a succession of such evacuations and injections the 

 residuum liquid may be rendered clear and largely aseptic on a 

 single occasion. 



In the smaller animals the selection of the most dependent part 

 for insertion of the trochar is not so essential, as the body may be 

 turned to facilitate the drainage. 



On completion of the operation the wound may be again treated 

 antiseptically and coated with aristol or collodion. 



