24 KENNEL DISEASES. 
the same, it is inflamed. As the evidences of inflammation disappear, what is 
termed resolution is taking place. After that process, in some instances no 
notable change in the affected part remains ; but often when there is inflammation 
a so-called effusion of lymph occurs, which, if not soon absorbed, glues together 
the movable tissues involved, and thus the parts are left more or less stiffened. 
In some inflammations, also, as of the covering of the lung known as the pleura, 
there is an effusion of serum, which is a thin fluid constituent of the blood that 
separates from the clot in coagulation. 
Suppuration is the formation of what is commonly called “matter,” but prop- 
erly termed pus. This is seldom absorbed, and only when the quantity is small. 
If left to itself it is quite sure to force its way out, and in doing so it takes the 
course in which it meets with the least obstruction. Using a finger as an illus- 
tration, pus forming in that finds an opening on the surface very difficult because 
of the thickness and toughness of the skin, therefore it burrows backward into 
the palm of the hand, where it will be easier to effect an opening. 
Pyzmia, sometimes termed purulent fever, is a traumatic, infectious disease, 
characterized by the poisoning of the blood by pus, a tendency towards the forma- 
tion of abscesses or collections of pus in different organs, fever and very great 
prostration. Septicemia, or septic wound fever, is a general disorder of the system 
caused by the poisoning of it by putrid or decaying matters absorbed from an 
unhealthy wound. 
Mortification, also called gangrene, is the actual death of a part. It does 
not often follow inflammation unless the same is of exceeding intensity, or the 
subject is very greatly debilitated; and where it occurs it is generally after the 
affected part has been literally and directly killed by cold. In gunshot wounds 
there is also a special liability of the occurrence of mortification. The term 
chronic inflammation is often used when redness, heat, pain, and some swelling 
have been of long standing; but there is reason for the belief that in many cases 
so designated, instead of the affected parts being inflamed, they are merely in 
an irritable condition. 
When an organ or part becomes enlarged from overgrowth only, in the 
absence of any essential change in its nature, it is said to be hypertrophied. In 
disease of the heart, for example, where one of its valves is imperfect and that 
organ must labor harder than it otherwise would be obliged to do to keep the 
blood circulating as it ought, it grows thicker and more powerful, or, in other 
words, it becomes hypertrophied. This increase in size continues up to a cer- 
tain point and then stops; and thereafter, although the heart really grows larger, 
it is not because its walls have thickened and become more powerful, as in the 
first instance. There has occurred an essential change in the nature of the 
organ, and the enlargement is due to dilatation, —to a stretching and thinning of 
the walls. Atrophy is the reverse of hypertrophy. Under certain conditions 
organs and parts shrink in size, and even the entire body may experience like 
