THE HORSE’S FOOT. 
441 
recently recommended by Haupt, Lafosse and Rey. The first 
of these professors takes an ordinary nail, with a small head, drives 
it through one edge of the crack, so as to come through the other 
at an equal distance from the point of entrance; the nail being 
thus driven to the head the borders of the crack are then brought 
together, and the nail secured in the ordinary way. Two or three 
of these clasps are employed, according to the extent of the crack. 
Lafosse makes'a groove on each side of the fissure, about one cen¬ 
timeter from the border, in a direction transverse to that of the 
fibres of the wall, which limits the passage of the nail. The 
nail is then introduced and secured as in the first instance. Rey 
makes a track for the nail first, by drilling a hole through the 
borders of the crack. The animal must be cast during these 
operations. 
The best kind of clasps or hooks are undoubtedly those of 
Vachette, which require special instruments for their application, 
but give a real solidity to the means of fixing the position of the 
parts. The clasps are all prepared, made of strong wire, bent at 
