88 
A. ZUNDEL. 
Fig. 5. 
Fig. 4. 
DRAWING KNIVES. 
Fig. 6. 
_ i 
Fig. 3. Fig. 2. 
Fig. 1. 
__ J 
SAGE KNIVES. 
Drawing knives, which are made somewhat like those used by 
blacksmiths in the ordinary method of paring the foot, yet differ 
from those in being straighter in their attachment to the handle, 
and also on being curved on their long axis, being also sharp on 
both edges. The groove of the instrument is made to vary in width, 
and thus can be used as the different steps of the operation may re¬ 
quire (tig. 4). Sometimes the drawing knife resembles more that of 
the blacksmith, as being sharp on one edge only, (fig. 5) and in this 
case the groove of the blade is generally much narrower than in 
the others. Some special operations require peculiar forms of 
drawing knives; for instance, those which are made with a blade 
perfectly straight and narrow, very slightly sharp on the edges, but 
having a very narrow groove at the extremity (fig. 6). These are 
used principally in the scraping of diseased bone-structure, in 
deep puuctured wounds of the foot, and in cartilaginous quittor, 
when small sections of cartilage are to be removed from the lateral 
borders of the os pedis, which could not otherwise be accomplished. 
Other instruments are also required, the description of which 
will find its place as we refer to the different diseases where they 
find their applications. 
