THE ITAVICULAR-JOUfT DISEASE. 
165 
the coronet; and where this is imperfect the horn or crust 
will grow down divided, because the growth of horn pro¬ 
ceeds from the coronary ligament. The mode of cure which 
has been most successful in this crack, has been to draw the 
heated cautery over the division of the coronet. This will 
be followed with some degree of inflammation; a scab will 
form on the part, which in a few days will fall off, when it 
will be found that no traces of the division will be visible, 
and fresh and sound horn will speedily grow downwards. 
When division of the horn at the coronet takes place, it 
requires five or six months to effect a cure. When the 
horn has grown downwards for an inch, the animal may be 
turned out, taking care that the part is well defended by a 
clambered pitch-plaster, which should be replaced by a new 
one as often as it separates from the hoof. At the same 
time a clambered shoe should be applied, but it must not 
press upon the hoof immediately under the crack. Every 
three weeks the shoe should be taken off and the sole care¬ 
fully pared down. It sometimes happens that bulbous 
projections are formed on the new horn. These should 
be carefully pared off. During the time the horse is sub¬ 
jected to surgical treatment for this complaint, he must 
have perfect rest, otherwise the cure will undoubtedly be 
orotracted. 
In purchasing a horse, it is absolutely necessary to 
examine with care the inner quarter of the feet, as it is 
very common for low, unprincipled dealers to cover over 
sand-cracks so neatly with pitch, and afterwards along the 
whole hoof, that it is so completely concealed, as not to be 
observable except by a narrow inspection 
THE NAVICULAR-JOINT DISEASE. 
Behind and beneath the lower pastern-bone, and behind 
