PRINCIPLES OF VETERINARY SURGERY 411 



ploy by preference the cautery. Remove all of the gangren- 

 ous tissue and even invade the healthy tissue beneath. If it 

 occurs in the limb of a small animal, amputation is indicated. 

 Completely destroy the tract of the seton, or lay bare the fis- 

 tula of the withers or poll-evil and then energetically irrigate 

 the viround with antiseptics. Bouley recommends sodium 

 chloride — Labarraque's liquor; Trasbot employs tincture of 

 iodine injected throughout the entire engorgement, and 

 Viand used intermuscular injections of cresol. Antiseptics 

 capable of yielding oxygen to the tissues — oxygen water, 

 permanganate of potash — and from another idea — sulphate 

 of sodium, on account of its sulphuric acid — constitute so 

 many agents of real value. 



The general treatment should be considered of second- 

 ary importance, but should not be neglected. The patient 

 should be supported with stimulants — hay-tea, milk, bouil- 

 lon, alcohol — and when needed nutritive solutions may be 

 administered per rectum. In the majority of cases, in spite 

 of prompt intervention all of the means employed are im- 

 potent. 



ANNOTATION. 



The following line of treatment has been successful in three cases. The 

 disease was recognized early. The emphysema and oedema were still con- 

 fined to a small area. In one case the entire swelling was no larger than 

 a man's hand, while in the other two it covered a space of about one foot in 

 diameter. All three of the cases were located in the region of the shoulders 

 and were typical examples of the affection. 



The swelling of each case was surrounded with a series of incisions 

 through the skin,, two inches long and two inches apart. The skin was then 

 freely loosened from the subjacent tissues, some distance in every direction 

 from each incision so as to freely admit air to the whole environs. Two or 

 three liberal gashes were also cut into the infected center. All of these 

 openings were injected with hydrogen peroxide night and morning during 

 the next few days. In one of the cases the advancing swelling escaped be- 

 yond the line of incisions at two or three different points, and as a con- 

 sequence a second series of incisions were made some eight inches from 

 the first series, and the same treatment accorded to them. The febrile state, 

 dejection, and in fact all the general symptoms, lasted some ten days with 

 decreasing intensity. At the end of that time a second febrile state super- 

 vened from secondary infection of the numerous openings with pyogenic 



