192 



SCIENTIFIC HORSESHOEING. 





Fig. 86. coffin bone — vertical in 



LINE. 



Fig. 86 is a photograph of a perfect 

 cofBn bone, exactly level on sole 

 bearing, "with the flexor tendon cut 

 off even with B, the navicular bone. 

 In a well-balanced foot the vertical 

 dropped from the center of the knee 

 passes through the center of the apex 

 of the coffin bone. 



Fig. 87. coffin bone — vertical out 



OF LINE. 



Fig. 87 is a photograph of a perfect 

 coffin bone, showing the effects of an 

 uneven heiglit of quarters. Assum- 

 ing width of hoof 4 inches on the 

 bottom, distance from base to knee 

 20 inches, difference of height in 

 quarters of } inch would cause a dis- 

 placement of 1|^ inches at the knee, 

 thus unevenly distributing the weight 

 and bearings. 



tendons and ligaments will operate in structural har- 

 mony. 



We are now prepared to advance to the consideration of 

 the foot and leg in their proper positions as weight bearers. 



Fig. 88 has been drawn with great care to show the perfect 

 front limb and foot. It is correctly placed under the carcass, so 



