190 
CASES OF QUITTOR. 
lowered so as to leave no bearing upon a bar shoe, which was 
then applied, and removed every third week. The sinus was in- 
jected daily with a saturated solution of sulphate of zinc, and rest 
enjoined. 
March 8 th . — Have continued injection to this period with no 
improvement in respect to the lameness, and no alteration of the 
discharge. A weak solution of chloride of lime was now injected, 
twice daily. 
15th . — The injections have been regularly attended to up to this 
date, and there is not the smallest improvement. The bichloride 
of mercury wrapped in paper was now introduced into the sinus, 
secured by compress and bandage, for twenty-four hours. The 
sinus was then injected, twice daily, with a weak solution of chlo- 
ride of lime : on the fourth day the slough was removed, and the 
injection continued for ten days longer. 
‘30th. The mare is as lame as on my first visit. The discharge 
is still thin, dark in colour, and foetid, and mixed with, blood after 
exercise. No good resulting from the usual plans of treatment, 
and my employer evidently becoming impatient, I at once proposed 
the simple plan of treatment advised by Mr. Mayhew three years 
ago, viz. converting the sinus into a simple wound by means of 
the knife : to this he consented, but said it should be the last step 
taken. Having the crust reduced as thin as possible over the 
region of the sinus, and well rasped for some distance around the 
part, a strong probe-pointed bistoury was then introduced, and 
the sinus completely laid open. A small portion of horn at the 
inferior extremity of the incision was afterwards removed, to prevent 
any lodgment of matter, and on doing this was found a consider- 
able quantity of the hydr. nitr. oxyd., which had been used by the 
smith who originally had been entrusted with the case. Two small 
pieces of dead cartilage were taken away with the mass here re- 
moved. Two other sinuses were now detected, taking a course 
backwards towards the heel. These were laid open, and a pledget 
of lint placed in each wound, the foot being enveloped in poultice 
for two days. 
April 2 d . — The mare is feeding well, and has done so since the 
operation — is resting more weight upon the foot than heretofore : 
the wounds discharge freely, though the pus is still thin and rather 
foetid. Use chloride of lime with poultice. 
4 th . — Wounds are granulating well — pus less in quantity, thicker, 
and not so foetid. Strips of lint wetted with a weak solution of 
chloride of lime are now inserted into each wound, and retained 
there by cording and bandage. 
0th . — Walks much better, and appears to suffer no pain when 
standing still or bearing upon the lame foot. The posterior wounds 
