MORBID ANATOMY 73 



those animals which are not killed by bleeding. In animals 

 which live until emaciation is marked, there is no engorge- 

 ment of the vessels. 



All cases show some hemorrhagic areas in the subcu- 

 taneous tissue, though the number and size of these vary 

 greatly in the different cases. Some animals show not over a 

 dozen areas between two and three centimeters in diameter, 

 though many minute ones are present. In other animals, on 

 removing the skin, hemorrhagic areas are found in great num- 

 bers and so extensive that a large fraction, possibly one-eighth, 

 of the bod}' surface appears to be involved. The large hemor- 

 rhages in the subcutaneous connective tissue appear to be of 

 the composite type noted above. 



The location of the superficial lesions varies in different 

 animals. In most cases the parts about the shoulder are most 

 affected, — in some the throat, and in others the digital region. 

 A few animals show marked lesions in the gluteal and inguinal 

 regions. 



x\t first sight the muscle tissue in some cases seems to be 

 much involved. A closer examination, however, usually 

 shows that while some of the minute hemorrhages are in the 

 muscle proper, the larger ones are in the intermuscular con- 

 nective tissue. They are usualh' accompanied b}' a consider- 

 able quantity of j'ellowish or blood stained serous exudate. 

 The intermu.scular connective tissue appears to be quite as 

 much involved as the subcutaneous connective tissue. 



The lymphatic glands are frequenth', though not uni- 

 formly nor constantly enlarged. Those that are enlarged are 

 oedematous and often hemorrhagic. The most constantlj' and 

 seriously affected are the cervical and prescapular. 



The nasal mucous membrane in some cases is congested, 

 and a bloody serous discharge from the nostrils is present in 

 a few cases. The tissues around the larynx are hemorrhagic 

 and infiltrated with blood stained serum. The mucous mem- 

 branes of the larynx and trachea are more or less congested 

 and covered with a frothy mucus, sometimes streaked with 

 blood. In some instances no lesions are observable in the 

 larynx and trachea. The lungs are in general almost free 



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