7- Epizootic, or Epidemic. — Is a term used when a disease is very 

 prevalent, attacking many people or animals at the same time, 

 e.g., Influenza, Pieuro-Pneumonia, and Foot and Mouth. 



8. Enzootic — Refers to Diseases confined to certain localities. Ague 



in man, Red Water in cows, Louping-ill in sheep, &c. 



9. Specific — Is a term used when the disease arises from some 



specific germ, i.e., Glanders, Pleuro-Pneumonia, Anthrax, &c, 



ID. Sporadic — Refers to ordinary diseases daily occurring, e.g., 

 Simple Inflammation of the Bowels, Lungs, and Feet, &c., &c. 



There are other terms used, but the foregoing are quite sufficient 

 for our purpose. 



14. Before reviewing some of the injuries, derangements, and 

 diseases of the different organs of the body, I shall first refer briefly 

 to that extensive, and most important subject, inflammation. 



15. Inflammation is the most common disturbance affecting 

 the organs of the animal creation ; and yet, Inflammation, like fire or 

 water, is a good servant as well as a bad master, and may be looked 

 upon both as Reparative and Destructive. Without its aid, the ends 

 of fractured bones would not unite, nor would surgical operations result 

 successfully, if it was not for the inflammatory adhesive exudate that 

 favoured the formation of a neAv connective tissue. The practitioner 

 performs the operation, and trusts to Nature and Reparative 

 Inflammation to accomplish the rest. Wounds, however simple, in 

 horses and cattle, seldom, or never, heal without inflammatory action. 

 If, however, the practitioner cannot keep the inflammation under 

 control, instead of the reparative process, destructive inflammation 

 may be set up. Therefore, inflammation may be defined to be an 

 increased nutritive action in the first stage ; secondly, perverted 

 atomic change in the tissues of a part, with lieat, pain, redness, and 

 swelling. When a part is irritated, the small blood vessels, called 

 capillaries, first contract, then dilate — and this, by some, is said to be 

 the first action of inflammation. But about this point there is difference 



