NECROSIS. 463 
with the red iron. 
(Fig. 100.)! To-day, phenicated water, liquor of Van 
Swieten, chloride of zinc (10 p. 100) are mostly used. Though the slough- 
ing of the sequestrum takes place slowly, there is no need to remove it 
with sharp instruments. Leave the work to nature. Often the gouge o1 
the dressing knife would remove too little or too much of the tissue, 
However, if it was feared that the inflammation might spread to other 
important organs, it would be. advantageous to excise the dead part and 
Fig. 100.—Necrosis of the scapula. S, sequestrum. (Specimen of the Afort School.}= 
stop only when healthy tissue is reached, easily recognized by its. aspect 
and the blood that oozes over the section. With these exceptions, the: 
disjunction must be left to take place spontaneously. 7 
During the time that the separation between the dead and the living 
tissue goes on, some special cares are necessary to avoid complication. 
Abscess should be open, purulent undermining freely cut at dependent:. 
1 In the museum of the American Veterinary College there is a specimen similar-- 
to that represented in Fig. 100, the entire scapula being enveloped and moving loose-: 
in it. : 
