362 



DEFOEMITIES AND DISEASES OF THE HOOF. 



striking is to be feared the limb of the shoe covering the up- 

 right wall should be fitted as full as possible, the extreme edge 

 being perpendicularly beneath the coronary margin of the con- 

 tracted wall, whilst that on the sound side should exactly fit 

 the wall. 



A bar shoe is even more useful, especially when the bulbs of 

 the frog are displaced ; the shoe, however, should be fitted as 

 described and the bar should take a bearing on the outer limb 

 of the frog (fig. 343). 



Pathologically oblique hoofs may also be treated with De 

 Fay's dilating shoe (see ' De Fay's shoe '), the notches on the 

 inner margin of the shoe being made at the same side as the 

 deformed wall, so that the effects may be confined to that side. 

 If the hoof has been pared unevenly and the disproportion in 

 the height of the two walls cannot be removed by trimming 

 the horn, the parts may be built up by using some gutta-percha 

 'Composition. 



Once improvement occurs and the upright wall assumes the 



Tig. 344.— Right hind-foot of foal with three-quarter shoe of unequal thickness. Tlie foot ■ 

 is thus tipped inwards, b, untouched bar ; c, bar cut back. 



same direction as the limb, while the posterior portions of the 

 hoof are of nearly normal width, treatment should cease, as its 

 continuance may produce other evils. 



The distortion of the hoof sometimes seen in unshod young 

 horses cannot always be cured by paring and rasping the hoof, 



