20 DISEASES OF SHEEP. 



ing the most important functions. Inflammation of the 

 brain also produces a great disturbance, whereas an inflam- 

 mation of the spleen, of different parts of the glands, and 

 of different external and inferior parts, is of no such im- 

 portant consequence. Inflammation is very often followed 

 or accompanied with more or less vehement fever, which in 

 such cases is called inflammatory fever ; it is, however, not 

 always the case that such inflammation is attended with 

 fever, and the latter cannot therefore be reckoned among 

 the necessary and reliable indications of the former. A 

 great many external, and some of the internal, inflamma- 

 tions are not accompanied with fever, particularly when 

 the inflamed part is of a small extent, not painful, or when 

 such inflammation is not yery vehement. If, however, such 

 an inflammation is of a vehement character, very extensive 

 and painful, or affects any important or delicate part, etc., 

 the fever generally occurs and becomes perceptible by 

 means of the increase of pulsation and other incidents ; 

 for instance, there is no fever whenever inflammation oc- 

 curs in consequence of a slight external injury to the skin, 

 and fever always appears whenever the lungs or intestines 

 are inflamed. The duration of inflammation varies mate- 

 rially, and depends upon the place, the extent, the degree 

 of intensity of the same — also upon the constitution of the 

 afflicted animal, the cause of the disease and upon numer- 

 ous other known or unknown circumstances. Inflammation 

 is in most cases of a short duration, occupying a period 

 varying from a few days to two or three weeks. In case a 

 considerably longer duration occurs, such inflammation is 

 called " slow or lingering fever," in which several of the 

 inflammatory ' indications disappear, such inflammation 

 then changing into another state or issue of the same. 

 Every inflammation increases more or less rapidly to a cer- 

 tain degree, and terminates in another issue. The most 



