DISEASES 'OF THE SKIN AND EABS. 229 



forms upon the skin, thickly cover the shoulders, neck, sides, 

 and the back parts of the fore-legs. 



When the skin is in the feverish condition that often char- 

 acterizes it about th*e time of shedding, a variety of causes 

 may produce a determination to surfeit. The eruptions may 

 be thrown out very suddenly, not only by exposure to cold, 

 but by the horse cooling off very quickly after having been 

 overheated, or by drinking large quantities of water. They 

 sometimes make their appearance in the course of a single 

 night. 



A species of quick surfeit is sometimes the occasion of 

 great alarm to the inexperienced, from the apprehension that 

 it was farcy, by which name surfeit is called by thousands 

 of American farmers at this day ; but it has none of the dis- 

 tinctive symptoms of that fearful scourge. Surfeit may, very 

 rarely, degenerate into farcy, but this can only be when other 

 powerful predisposing causes tend to the same result. A 

 number of other diseases will be more likely to run into 

 farcy than will this simple affection of the skin. This sub- 

 ject has already been adverted to in the section on Farcy, 

 in Chapter Y. 



TREATMENT. 



Not much is called for in the way of treatment. Bleed 

 freely, taking three quarts of blood from the neck vein, and 

 give two of the ordinary doses of sulphur and resin. If the 

 case seems obstinate, anoint the surface on which the surfeit- 

 knots have broken out with a mixture of sulphur and lard, 

 a spoonful of each. Do this at night, once or twice. Turn 

 the horse out to pasture, let him have a few days' rest, and 

 all will come out right. • ^ 



MANGE. 



Mange is the only disease into which there is much dan- 

 ger that surfeit may degenerate. They are of the same type, 

 but mange is much more aggravated than the other, and is 

 also highly contagious. They are produced by the same in- 



