DISEASES OF FARM ANIMALS IO3 



abortion have a number of marked symptoms, 

 namely, little red patches of infection on the lining 

 of the vulva, and there may also be present a 

 catarrhal discharge. The sheath of the herd bull 

 in the acute form of the disease has a catarrhal dis- 

 charge, while the symptoms of calves is a swelling 

 of the glands of the throat from ear to ear. These 

 last named symptoms do not appear in accidental 

 abortion. 



Owing to the fact that the germs of contagious 

 abortion are found in the mothers' blood, in the 

 genital organs of the cow and the bull, and in the 

 stables wherein they are housed, it has been posi- 

 tively decided that the only reliable and effectual 

 treatment for contagious abortion is the hypodermic 

 treatment, which destroys the germ in the mother's 

 blood. The genital organs of the cow and bull 

 should be washed out with the antiseptic solution 

 made of i pint of corrosive sublimate to i,ooo parts 

 of water, and the germs contained in the stables 

 wherein afflicted animals are housed should be de- 

 stroyed by disinfectants. In this way the disease 

 is met at every turn and it is impossible for the 

 disease of contagious abortion to exist when thus 

 handled. 



ABSCESS. — ^A collection of pus in a new-formed 

 cavity in the body. It has a well-defined wall sur- 

 rounding it. An abscess is the result of entrance 

 of micro-organisms into the body. They may have 

 entered through wounds or into the hair follicles, 

 or abscesses may result from infectious diseases 

 as strangles or distemper in the horse. At the seat 

 of the abscess formation swelling occurs, the part 

 feels warmer than the surrounding tissue, is pain- 

 ful to touch, and hard. These conditions are due 

 to the inflammation of the part. Later it becomes 



