27. Suppuration is perliaps the most common result of inflamma- 

 tion. Suppuration is the formation or discharge oi pus (matter which is 

 of two parts, soHd or corpuscular, and watery). Suppuration is both 

 acute and chronic, and can go on in different parts of the body, forming 

 what are called abscesses (gatherings). A good example is seen in 

 strangles in young horses. At first the abscesses are hard and 

 unyielding, but, as they ripen, or come forward, they begin to soften 

 and point in the middle, always aiming towards the external surface, 

 and having a well defined marginal ring. Some burst of themselves, 

 others require to be opened', but this should never be done unless the 

 parts fluctuate well under the fingers, and in such cases the opening 

 should always be at the bottom. We also have defused and superficial 

 suppuration ; the latter being seen on mucous surfaces, such as the 

 bronchial tubes, nostrils, and generative organs. 



28. There are various kinds of pus, viz. :— (i) Laudable, (2) Putrid, 

 (3) Sanioiis, (4) Scrofulous, and (5) Specific. Of these different kinds of 



matter or pus — Laudable is looked upon as the most healthy ; it is 



thick, or creamy. Specific resembles it in colour and thickness, but 

 is most dangerous, as in the case of glanders. The others have their 

 peculiar characters, and need the eye and attention of the professional 

 man to deal with them. 



29. Ulceration is another effect of inflammation generally found in 

 parts of low organisation, short of vitality, and where there seems to be 

 an excess of absorption over deposition. A good example is the front 

 of the shin bone of an aged human subject. When ulceration of this 

 part sets in, it seldom, or never, heals— there seems to be a dissolution, 

 or death of the minute structures, which the natural body has not 

 tone enough to reproduce. 



30. Ulcers are of various kinds, viz.. Healthy, Inflamed, Indolent, 

 Weak, Sloughing, and Specific. They are not very common in domestic 

 animals, though sheep occasionally suffer from them, as the ulcers 

 seen on the face in Stomatiiis PustuloscB, and in Foot Rot. Owing to 

 the great difference in the nature of the various ulcers, their treatment 



