2m 
THE CAUTEKY AND THE SETON. 
not affected, and therefore it is useless to apply the cautery to it. 
In such cases the vertical line on each side is placed more in 
front, and the oblique lines take a direction from it towards the 
back sinews. When the anterior part of the leg does participate 
in the engorgement, it is rarely to a sufficient degree to render 
the cautery necessary ; and when the cautery is applied to the 
front of the leg, it must be much more lightly than on the pos- 
terior parts. 
c. Exostoses and windgalls do not require the application of 
the iron over the whole surface of the leg, except only when in 
the neighbourhood of the tendons and other parts of the extremity 
there are severe lesions. On the simple splent, or windgall, ver- 
tical or parallel lines are drawn ; or they are disposed like the 
barbs of a feather or the foot of a goose, but occupying the whole 
extent of the diseased surface. 
d. The anterior surface of the fetlock may be covered with 
lines, vertical, parallel, or feathered. Its lateral faces may be 
cauterized as already described in the divisions a and b. The 
cautery should extend from the middle of the shank bone to a 
little below the fetlock, according to the state of the parts. 
e. The coronet is sometimes covered with vertical or parallel 
lines, as in engorgement of that region. At other times the 
operation is confined to the anterior parts, or to one of the sides. 
When it is absolutely necessary to carry the cautery close to the 
loot, it is always advisable previously to pare the foot well out 
in order to supple it, and to prevent the torture that would be 
produced by the compression of the parts contained within the 
hoof. 
f. This must also be done when the knee participates in the 
cauterization of the cannon. At other times it is confined to the 
leg alone. In this case, the disposition of the lines and which 
ought to cover the whole of the lateral surface of the leg, should 
be the same as that indicated in divisions a , b, c. When the 
cautery is applied to the anterior face of the knee, a perpendicular 
line should occupy the centre, and others branch obliquely from it 
on the either side. 
g. The whole of the hock being enlarged, it must be covered 
with these oblique lines, the straight one extending from the 
place where the tendinous cord detaches itself from the posterior 
part of the leg to the middle of the lateral face of the superior 
part of the cannon bone. The obliquity of the tendinous cord 
will serve as a guide for the direction of the oblique lines. The 
first lateral line should not quite correspond with the first pos- 
terior one, because it would then be found in the bending of 
the hock. 
