FACING DISEASE ON THE FARM 447 
In health the lungs are a very light pink color. Inflam- 
mation will be indicated by a dark color and hard den- 
sity. A marble appearance indicates inflammation; and 
hard lumps or tubercles indicate tuberculosis, which, 
when cut open, show pus and a cheeselike material. 
Feel the heart to know if it is natural or not, or to see 
if any of the valves are broken, or if the lining is in- 
flamed. Pink spots about the ribs indicate cholera in 
the hog. 
