360 DADD'S VETERINARY MEDICINE AND SURGERY. 
now applicable, the case being in this stage no more than ae cl 
dilated sinus in the foot, similar to what might, in another situa- 
tion, be called quittor. As with the quarter sand-crack, the cure 
will, of course, be tedious in its duration, since we know that all 
vomplete repair can only come from the coronet. The sensitive 
lamine having the power of secreting horny lamin, may, as in 
the quarter crack, issue a sort of horny covering-in of the bottom 
of the fissure; but fissure or cleft will ever remain so long as an 
integral formation of horn does not grow down from the source of 
secretion. 
Whenever the horse is in a condition for work, a bar-shoe, so 
made that at the toe the sides of the shoe remain unjoined together, 
an interval being left of sufficient width to receive the crack in 
front of the hoof, is, perhaps, the best. Binding the hoof up with 
circles of wax-end, as in the case of quarter sand-crack, with some 
plaster or dressing underneath it, will also now become advisable. 
It will restrict the spreading inclination of the hoof, as well as 
keep dirt and wet out of the crack. Repetition of this, and the 
coutinuance of the bar-shoe, will be required so long as there ap- 
pears any risk of an extension or renewal of the crack.’ ” * 
The diseases of the hoof here alluded to are very apt to occur in 
horses whose walls of the hoof are thin and brittle. They are, to 
a certain extent, non-elastic, and, therefore, do not ward off the 
necessary amount of concussion when the animal is traveling over 
hard roads. At the same time there is always a liability to incip- 
ient and permanent contraction in such hoof. More especially is 
this the case when the foot is mutilated by paring or cutting away 
the bars (the main stages or supports which prevent the heels 
approximating). These are the kind of feet on which the but- 
teris-knife and rasp should be used with great caution ; for, being 
naturally weak, and perhaps congenitally defective in the function 
of secreting horn, and the necessary amount of moisture to keep 
the part pliant, any unnecessary tinkering with such tools is inad- 
missible. Such hoofs lack moisture; therefore they should be 
weil soaked, night and morning, in warm water ; afterward wiped 
dry, and then smeared with a portion of the following: 
No. 57. Neats-foot oil..... ieee eee ees 8 02. 
Kerosene:.ii i scicaccecavas ices & OK: 
Lamp-black........+-..0++++++ 1 table-spoonfal. 
* London “ Veterinarian.” 
