W. J. MARTIN. 
b3ii 
mater of the brain and spinal cord. Considerable effusion of 
sernin is found in the arachnoid space. In chronic cases this 
serum is usually of a red color; in acute cases, it is often of a 
yellowish color and contains broken-down inflammatory debris, 
clots of fibrin, red blood corpuscles, etc. The pia mater shows 
evidence of intense inflammation and is often found closely ad¬ 
herent to the spinal cord by plastic exudation. The blood 
vessels surrounding the brain and spinal cord are congested and 
contain dark-colored blood. The spinal cord is of a soft, semi- 
gelatinous consistency and is usually of a dark red color. 
The stomach usually contains a small amount of food, dry 
and slightly impacted. The lungs are oedematous in the chronic 
form, and hypostatic congestion is present. In the acute form 
lobular pneumonia of an intense type is found in the anterior 
lobes of the lungs. Serum in considerable amounts is often 
found in the chronic cases, while in the acute or sub-acute ones 
it may be entirely absent. The intestines are covered in patches 
by areas of congested spots of a dark color; these congested 
areas are also found in the serous covering of the intestines. 
The colon is often impacted with dry food. In some cases the 
intestines will contain large numbers of parasites, such as S. 
Armatus, S. Tetracanthus, and Acaris Megalocephala. In some 
cases reported to me, large numbers of G. Equi and quantities 
of sand are said to have been found in the stomach and intes¬ 
tines. Of the former, I have seen a few present in many cases, 
though not in sufficient numbers to cause any harm. The latter 
condition I have never met with. 
The liver is enlarged and much engorged with dark colored 
blood. The muscular tissue showing most markedly by its yel¬ 
low color and the patches of yellow serum under the skin that 
this organ has been the seat of severe structural change. In 
the chronic cases, cirrhosis is a common condition of this 
gland. The spleen is enlarged, much engorged with blood of 
a dark color, and the structural substance of the organ is quite 
soft. The emaciation of the body both in acute and chronic 
cases is very marked, marasmus. 
