CHAPTER n. 



DISEASES OF THE SEIN AND SUBCUTANEOUS TISSUEfl 



r. SCRATCHES. II. GREASE. III. THRUSH. IV. SWELLED ANKLES. . V. 



SWELLED LEGS. VI. SURFEIT. VII. MANCE. VIII. RINGHWORM. -IX 



HIDE-BOUND. X. SADDLE GALLS, OR SITFASTS. XI. FUNGOUS COLLAK 



TUMOR. XII. WARTS. XIII. VERMIN. XIV. LARVA IN THE SKIN, 



XV. TETTER. XVI. RAT-TAILS. XVII. MALLENDERS AND SALLENDERS.— — 



XVIII. POLL EVIL. XIX. FISTULA. 



Of skin diseases there are two classes : those resultingf from neo-leot 

 and general bad treatment, and those due to disorders of the internal 

 organs with which the skin is in sympathy, or which inflame it by unnat- 

 ural excretions or irritants in the blood. It is almost impossible perfectly 

 to classify them, since even some that are generally considered to arise 

 from constitutional causes may be produced by external circumstances, 

 and the reverse. 



In the following sections we treat the most important of both classes. 

 Others of less moment will be found in our chapter entitled ' * Miscella- 

 neous Matters and Suggestions, ISlinor Disorders, etc." 



I. Scratches. 



Causes. — These are various ; as, clipping the heels, which is sometimes 

 done, and thus destroying nature's covering, so as to allow the parts to 

 become chilled ; washing off the legs with soap and water without subse- 

 quently thoroughly drying them, and then suffering them to be exposed 

 to cold air ; standing in snow or snow-slush ; standing in or upon hot and 

 steaming manure of any kind, while in stable ; or being long in mud and 

 filth while in service and not subsequently carefully cleaned. Aiij-thing 

 that will produce inflammation of the skin of the heel, or in any wav 

 *reaken it, may produce scratches. 



As is the case with other local disorders, this is most easily and rapidly 

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