1278 CYCLOPEDIA OF LIVE STOCK AND COMPLETE STOCK DOCTOR. 



and very friable. On its surface and borders, in acute cases, raised 

 blood-red points are frequently encountered. The liver is sometimes 

 enlarged, sometimes liighly congested, and is found quite pale at other 

 times. Occasionally its surface is mottled with pale greenish patches. 

 The kidneys are more or less changed. Frequently the surface is dotted 

 with a variable number of dark-rod points, is commonly much congested ; 

 even the tips of the papilUe may assume a dusky hue. The cortical 

 portion in some cases is the seat of a hemorrhagic intlammation. On 

 section it is dotted with closely set, dark-red points, probably the glome- 

 ruli in a state of extreme engorgement. 



The heart is but slightly affected. The pericardium is always more 

 or less distended with fluid. In acute cases a variable number of puno- 

 tiform and larger extravasations are present beneath the pericardium of 

 the auricular appendages. More rarely a few are found beneath the 

 endocardium of the ventricles. The right side is, as a rule, distended 

 with a dark coagulum and left nearly empty. 



The lungs are in many cases normal, both in cases of rapid death and 

 protracted disease. We have seen many cases in which perfectly sound 

 lungs accompanied extensively ulcerated intestines. In a moderate 

 number of acute, virulent cases, the luiigs are, in general, collapsed and 

 pale. Under the pleura, however, there are seen small patches of a 

 dark-red color, which correspond to limited regions of dark hepatized 

 tissue not much more than one-quarter inch in diameter. These foci 

 are always found throughout the lung tissue in greater or less abun- 

 dance. In the advanced stages of chronic swine plague, the major part 

 of the lungs may be completely hopatizod. This condition we have 

 found but rarely, and may depend on circumstances not yet clearly un- 

 derstood. 



The lymphatic glands are always more or less affected, those of the 

 thorax as well as those of the abdomen. The glands at the root of the 

 mescntary are very nmch thickened and confluent, mottled, red, and 

 whitish; the medullary portion is commonly reddened, the cortex more 

 frequently gorged with blood. The glands imbedded between the coils 

 of the large intestine are usually of a very dark-red. When these coils 

 are torn apart, the glands are brought to view as isolated, bean-shaped 

 bodies, their dark, blood-red color contrasting markedly with the adja- 

 cent paler, flesh-coloix'd serosa. This congestion prevails throughout the 

 gland-tissue. On section the knife becomes covered with blood. This 

 description applies equally well to the glands in the region of the 

 stomach, the paler inguinals, the bronchial, and mediastinal glands. In 

 chronic cases, which have lasted from three to fours weeks, the lym- 

 phatics are usually large, but very pale and tough od section. 



