368 



The frog is occasionally frost bitten and may slongli off, exposing tho 

 soft tissues beneath and causing severe lameness for a time. 



Treatment. — Simple frost bites are best treated by cold fomentations 

 followed by applications of a 5 per cent, solution of carbolized oil. 

 When portions of the skiu are destroyed their early separation should 

 be hastened by warm fomentations and poultices. Ulcers arc to be 

 treated by the ai^plication of stimulating dressings such as carbolized 

 oil, a 1 per cent, solution of nitrate of silver or of chloride of zinc, with 

 pads of oakum and flannel bandages. In many of these cases recovery 

 is exceedingly slow. The new tissue by which the destroyed skin is 

 replaced always shrinks in healing, and as a consequence unsightly 

 scars are unavoidable. Where the coronary band is involved it is gen- 

 erally advisable to blister the coronet over the seat of injury as soon as 

 the suppuration ceases, for the purpose of stimulating the growth of 

 new horn. Where a crevasse is formed between the old and new horn, 

 no serious trouble is likely to be met with until the cleft is nearly grown 

 out, when the soft tissues may be exposed by a breaking off of the 

 partly detached horn. 



But even where this accident happens final recovery is secured by 

 poulticing the foot until a sufficient growth of horn i>rotects the part 

 from injury. 



QUITTOR. 



Quittor is a term applied to various affections of the foot wherein the 

 tissues which are involved undergo a process of [degeneration that re- 

 sults in the formation of a slough, followed by the elimination of the 

 diseased structures by means of a more or less extensive suppuration. 



For convenience of consideration quitters may be divided into four 

 classes, as suggested by Girard. (1) Cutaneous quittors, which is 

 known also as simple quittor, skin quittor, and carbuncle of the coronet; 

 (2) tendinous quittor ; (3) subhorny quittor ; and (4) cartilaginous 

 quittor. 



CUTANEOUS QUITTOR. 



Simple quittor consists in a local inflammation of the skin and of the 

 subcutaneous connective tissue on some part of the coronet, followed 

 by a slough and the formation of an ulcer, which heals by suppuration. 



It is an extremely painful disease, owing to the dense character of 

 the tissues involved; for, in all dense structures, the swelling, which 

 accompanies inflammation, always produces intense pressure. This 

 pressure not only adds to the patient's suffering, but may, at the same 

 time, endanger the life of the affected parts by strangulating the blood 

 vessels, which alone constitute the means whereby a nutritive supply 

 is constantly maintained. It is held by some writers on the subject 

 that simple quittor is most often met with in the hind feet, but in the 

 author's experience more than two-thirds of the cases have developed 



