50 



SCIENTIFIC HORSESHOEING. 



A, Pedal- or coffin-bone — 

 third phalanx terminating 

 the foot. 



B, Extremity of navicular 

 bone. 



C, Small or lower pastern 

 bone — second phalanx. 



D, Large or upper pastern 

 bone — first phalanx. 



E, Pyramidal process on 

 coffin-bone, which gives in- 

 sertion to the tendon of the 

 front extensor of the foot, 

 and which braces the joint 

 by preventing the pastern 

 from slipping too far forward. 



F, Basilar process of wing 

 to which the lateral cartilage 

 is attached. 



Fig. 3. side view of the phalangial sections G, Irregular ridge above 

 OF THE foot, showing THE BONES OF THE DIGITAL the retrorsal process or pre- 

 KEGioN in THEIR NORMALRELATiONSTO EACH other, plantar fissure throuf^h 



which passes the lateral 

 laminal and preplantar un- 

 gual arteries and their satel- 

 lite nerves. 



The lower face of this bone is arched, and intt) its crest is 

 fixed the insertion of the deep flexor of the foot. The articula- 

 tions of these bones with each other, and with the lower extrem- 

 ity of the cannon-bone, form the ankle and fetlock joints. The 

 line through their central axis defines the natural incidence of 

 the weight in its descent from the body, and indicates that the 

 natural inclination of the cofiin-bone is in direct line with the 

 pasterns- 



