PART I. 

 DISEASES OF HORSES. 



CHAPTER I. 

 DISEASES OP THE SKIN AND SUBJACENT TISSUE, 



Abscess Ulcers. 



AN abscess is a collection of matter. Any tumor 

 softening, or in other words coming to a head, forms 

 an abscess. They are usually the result of injuries, 

 such as a blow or contusion, or may be occasioned 

 by a thorn, nail or splinter entering the flesh. In 

 the more severe cases these act in connection with 

 a constitutional pre-disposition or peculiar state of 

 the blood. 



SYMPTOMS. A hot and painful swelling; in the 

 earlier stage, hard, and by degrees softening or fluc- 

 tuating iii the centre, and gradually approaching the 

 surface, attended with more or less heat and fever, 

 according to its situation and nature 



Abscesses which penetrate deeply along the 

 sheaths of muscles and tendons, or even to the bones 

 are termed FISTULAS. Shallow abscesses are known 

 as ulcers, and these may be mild, readily healing, 

 and secreting a healthy, thick, cream-like pus ; or 

 ill-conditioned, unhealthy, secreting a thin sanious 

 discolored matter, and healing with great difficulty. 



