162 THE VETERINARY SCIENCE. 



Sulphate of Iron i pound. 



Ground ( ientian Root J 



Mix thoroughly and g-ive a large teaspoonful three times a 



dav in nis feed. Feed well and give gentle exercise every day. 



This disease, if treated this way, and allowed to run its course 



without getting cold, will terminate favorably. But above all 



things never bleed, or give aconite or a physic in this disease, for 



it only tends to make the animal weaker and the disease worse. 



BUTTON FARCY (PURPURA HEMORRHAGICA). 



This disease is not contagious or does not spread Irom one 

 animal to another. It is defined to be some putrid condition or 

 charbonous affection of the blood. The disease mostly affects the 

 capillary blood vessels of the skin, but in some cases it will affect 

 the lining of the lungs and air passages. 



Causes. — It generally comes after some other disease, such as 

 influenza, distemper or any other weakening ailment, also in 

 horses that are overworked, thin and run down in condition. 

 When the system is in this state by turning the animal out cold 

 nights or allowing him to be out in a cold rain, and he gets a chill, 

 you need not be surprised to see this disease come on. It is 

 noticed mostly in the spring and fall. The blood gets very thin, 

 almost like water, when the animal is suffering from this 

 disease. 



Symptoms. — The disease generally comes on very suddenly, 

 the horse may be apparently all right at night, and in the morning 

 he will be literally covered with patches of swelling all over the 

 skin. In some cases it affects the animal more in some parts 

 than in others, for instance, we have seen cases where the eyelids 

 were so swollen the animal could not see out of them, his lips 

 will also be swollen so much he cannot eat, in other cases his 

 sheath and legs will be badly swollen, or little spots may be seen 

 all over the skin, especially on the sides of the neck and thighs and 

 over the back. The peculiarities about these swellings are that 

 they come on so quickly, and sometimes disappear from one part 

 of the body and come on in another. By giving the animal exer- 

 cise it will take them down, but afterwards the lumps will come 

 back worse than ever. Examine the lining of the nose, and if it is 

 affected watch out for lung disease. The general symptoms are 

 the animal will seem dull and breathe a little heavier than natural, 

 pulse not much changed, but weak, and he will generally try and 



