120 Diseases of the Horse, 



No. 76. Calomel, 



Digitalis, 

 Opium, 

 Camphor, of each 30 grains. 



Make into a ball and give once or twice a day. 



After the first week the calomel should be omitted and the 

 three remaining ingredients continued. 



Prof. Law considers the most useful of all medicines to 



be an arsenical preparation, as : — 



No. 77. Arsenic, Fowler's solution, 1 oz. 



Belladonna extract, 1 drachm. 



Tincture of ginger, ^ drachm. 



Mix with a pint of water for a drench and give every morning for a 

 month or two. 



If the animal is turned out to pasture on clean short grass, 

 and given this regularly, it will cure mild and recent cases. 



ROAEING—HIGHBLOWING— THICK WIND— WHISTLING. 



Definition. — These peculiar noises all arise from some 

 diseased condition of the windpipe. Roaring when of long 

 standing is owing to atrophy or degeneration of the muscles 

 of the larynx. Thick wind arises from an inflamed and 

 thickened condition of the lower and smaller branches of the 

 breathing tubes. Whistling is a sharp sound arising from a 

 narrowing of the windpipe, usually at its upper portion 

 near the larynx. Both roaring and whistling occur during 

 inspiration. 



Causes. — All these disorders may follow sharp colds, or 

 pneumonia, strangles, diseases of the nose, tumors or tight 

 reining. They are also frequently hereditary, and constitute 

 an unsoundness. 



Symptoms. — In addition to the peculiar sound above 

 mentioned, the roarer generally has a cough which is pecu- 

 liar, being a loud sharp dry sound, half a roar, half a cough. 

 In thick wind the breathing is more rapid than usual, and 

 there is a short, dry loud cough, which can be elicited at any 



