" SYMPTOMS AND PATHOLOGY 17 



the hind portions being, in . these cases, the ones 

 chiefly affected; or both lungs are uniformly con- 

 gested, being in some cases of a dark purple-red 

 colour. On microscopic examination it is found that 

 in the congested parts the large and small blood- 

 vessels are uniformly distended and filled with blood, 

 and that the air-spaces of the more deeply affected 

 parts are uniformly filled either with a homogeneous 

 or granular exudation, or with blood ; so that in these 

 parts we have a solidification of the lung which com- 

 pares with the condition known as the red hepatisa- 

 tion in Pneumonia. There is, however, no fibrine in 

 the form of threads noticeable in the air - spaces ; 

 the smaller air-spaces contain blood en masse, while 

 the large ones are filled with a homogeneous albu- 

 minous exudation. From this we conclude that rup- 

 ture of small vessels had taken place during life 



(Fig. I). 



The spleen is not enlarged, and appears of a dark 

 colour. The liver is uniformly congested and soft ; 

 it is either of dark red colour or appears almost black. 

 On microscopic examination the large blood-vessels 

 as well as the capillaries of the lobules are distended 

 and filled with blood corpuscles. In some cases the 

 liver, on post - mortem examination, is blackish, or 

 rather is of a dark olive-green colour. In these 

 instances the liver cells appear granular and more or 



c 



