DISEASES. 711 



Superficial cauterization is necessary in order to remove the 

 induration and swellings likely to follow, and to stimulate the 

 resolution. The action of the firing may be stimulated by blister- 

 iag, or by an alterative ointment of iodide of mercury, of sulphur, 

 etc. 



C. Sttb-Hobny Quittob. — This is the inflammation of the su- 

 perior part of the keratogenous apparatus of the cutidura; or 

 even of the superior parts of the sensitive laminse. This quittor 

 is, therefore, located under the horny box, and is more like the 

 cartilaginous kind, which old hippiatrics, and especially SoUeysel 

 and Garsault, describe with it. It generally takes place on the 

 quarter, and more seldom at the toe, or at the mammas. Some- 

 times it is observed at the heels, but it is then of small conse- 

 quence. 



I. Symptoms. — The lameness is very great. The animal 

 walks on three legs, and there is strong reactive fever, due to the 

 excessive pain — this form of the disease beiag more painful than 

 the others, in consequence of the pressure of the horny structure 

 upon the inflamed tissues. At the origin of the nail a warm and 

 very painful tumor is found; the foot is hot and the hairs staring 

 on the site of the injury. If the disease has existed for some 

 time, there is a separation of the hoof at its origin, due to a sero- 

 purulent exudation, and under the hoof suppuration and mortifi- 

 cation of a more or less extensive portion of the coronary band, 

 or of the laminae will' be found. The suppuration which there 

 exudes varies, being in rare instances blackish, as it is usually 

 found in traumatic injuries of the hoof; or, again, it is white and 

 unctuous, with the odor of decaying cheese; while more commonly 

 it consists of a bloody or greyish matter, mixed with pus. 



If the mortified portion is not deeply seated, so that the slough 

 can take place readily, the quittor is quite simple, since as soon 

 as it has dropped off there is a well marked improvement. The 

 pain then ceases almost instantaneously, and the wound at once 

 progresses toward cicatrization. But it is not rare, even when 

 the mortification is somewhat superficial, to find the sub-ungueal 

 suppuration extending so that the matter runs under the hoof, 

 producing at times more or less serious fistula, or a separation of 

 the sensitiVe and insensitive lamin*. Girard says it has been seen 

 to extend downward to the sole, and to separate it from the vel- 

 vety tissue. The deep, sub-horny quittor may be comphcated, 



