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way, are certainlj' subjected to the same exciting causes that pro- 

 duced the disease in the first animal affected. Those that escaped 

 the disease were not predisposed to take it ; hence their exemp- 

 tion from its effects. 



Prevention. Separate the sick from the well. All buckets, or 

 other materials, that were in contact with the sick, must be thor- 

 oughly cleansed and purified. (See Disinfectants.) 



Contraction. — (See Foot Diseases.) 



Convalescence. — A term applied to the time which elapses 

 between the controlling of acute disease, and the restoration of 

 the patient to perfect health. 



Corns. — (See Foot Diseases.) 



Coryza Gangrenosa. — This name is applied to an ulcerated 

 condition of the membrane of the nose supervening in a case of 

 cold. It is evidence of general debility, and disintegration or 

 deterioration of the membrane. 



Corrosive Sublimate. — (See Medicines and Poisons.) 



Cough. — A sym/ptom of disease of the respiratory organs, as 

 tubercles of the lungs, thickening of the lining membranes of the 

 wifadpipe, and enlargement of the glands of the neck. I have 

 seen cough from indigestion in a few cases, but this is rare in 

 horses. 



Cough, Chronic. — Causes. — Debility, or softening of the par 

 vagus nerves ; heaves, or broken wind (which see), are some of 

 the causes which produce acute cough. 



Treatment. Removal of whatever is the cause (causa sublata 

 tuiitur effectus). 



Counter-irritants. — An external application, which, when 

 applied, causes an irritation or inflammation counter or opposite 

 to that which exists inside. 



Cow Hock. — This name is applied to a condition or malforma- 

 tion of those hocks that incline forward, thus forming a fulcrum, 

 over which the posterior straight ligament passes — this condition 

 favoring a sprain of the ligament, which is called curb. (See 

 Curb.) 



Cramp. — Cramp of the stomach or bowels of horses cannot 

 readily be distinguished from spasmodic colic (which see). 



Cbamf of the Hind Leg. — ^This affection is common among 



