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sensitive, and the whole foot is hot and i)ainfii]. After a few days' 

 time a small spot in the skin, over the most elevated part of the 

 tumor, softens and opens, or else the hoof separates from the coronary 

 band at the quarter or well back toward the heel. From this opening, 

 wherever it may be, a thin, watery, offensive discharge escapes, often 

 dark in color, at times mixed with blood, and always containing a con- 

 siderable percentage of pus. 



Probing will now disclose a fistulous tract leading to the bottom of 

 the diseased tissues. If the opening is small there is a tendency upon 

 the part of the suppurative process to spread downward ; the pus grad- 

 ually separating the hoof from the sensitive lamiuje until the sole is 

 reached, and even a portion of this may also be undermined. 



As a rule, the slough in this form of quittor is not deep, so that if the 

 case receives early and proper treatment complications are generally 

 avoided, but if the case is neglected, and, occasionally, even in spite of 

 the best of treatment, the disease spreads until the tendon in front, the 

 lateral cartilage, or the coffin bone and joint as well, are involved. 



In all cases of subhorny quittor much relief is experienced as soon 

 as the slough has come away, and rapid progress toward recover^" is 

 made. If, however, after the lapse of a few days' time, the lameness 

 still remains and the wound continues to discharge a thin unhealthy 

 matter, the probabilities are that the disease is spreading, and that pus 

 is collecting in the deeper parts of the foot. In Zundel's opinion, if the 

 use of the probe now detects a pus cavity below the opening, a car- 

 tilaginous quittor is in the course of development. 



Treatment. — Hot baths and poultices are to be used until the presence 

 of pus can be determined, when the tumor is to be opened with a knife 

 or sharp-pointed iron heated white hot. The hot baths and poultices 

 are now continued for a few days, or until the entire slough has come 

 away and the discharge is diminished, when the dressings recommended 

 in the treatment for cutaneous quittor are to be used until recovery is 

 completed. In cases where the discharge comes from a cleft between 

 the upper border of the hoof and the coronary band, always pare away 

 the loosened horn, so that the soft tissuea beneath are fully exposed, 

 care being taken not to injure the healthy j^arts. This operation per- 

 mits of a thorough inspection of the diseased parts, the easy removal 

 of all gangrenous tissue, and a better application of the necessary rem- 

 edies and dressings. The only objection to the operation is that the 

 patient is prevented from being early returned to work. 



When the probe shows that pus has collected under the coffin bone, 

 the sole must be pared through, and if caries of the bone is present, 

 the dead parts must be cut away. After either of these operations tlie 

 wound is to be dressed with the oakum balls saturated in the bi- 

 chloride of mercury solution, as previously directed, and the bandages 

 tightly applied. Generally the discharge for the first two or three days 

 is so great that the dressings need to be changed every twenty-four 



