142 



SCIENTIFIC HORSESHOEING. 



Fig. 38. side view ok coffin-bone out of 

 THE FOOT, Figs. 36 and :>7. 



become bruised and 

 curled under or bulged 

 below the shoe, and 

 low heels will produce 

 a "wheel" foot, such 

 as shown in Fig. 36. 

 Fig. 38 shows the coffin- 

 bone from same foot 

 much distorted from its original form by the effects of faulty 

 shoeing, as well as of disease resulting from the same. 



Teditis is the term applied to this serious complication of 

 laminitis, where not only the laminte but the periosteum and 

 the coffin-bone are also subject to the inflammatory process 

 which sometimes involves the coffin-joint. 



Depression of the coffin-bone is oftentimes accompanied 

 witli su})puration, where the separation of the reticulum from 

 tlie bone takes place, and gangrene and superficial caries are 

 common results. 



The destructive effects of this disease upon the internal 

 structure of the foot are well displayed in this drawing. The 

 bone has become much distorted from its original form, from 

 the pressure of the part constantly under weight when the sole 

 has become dropped; the upper surface has "dished," as it 

 were, or fallen in, until only one half its original height, while 

 an immense number of small spines or thorn-like spurs have 

 grown all over it, and the lower part of the bone has convexed 

 in an extreme degree, bulging down until it had lost all sem- 

 blance of its original shape. 



In a preceding chapter instructions have been laid down for 

 the management and shoeing of the feet of draft horses, and 

 if they are carefully followed the most satisfactory results will 

 be obtained. 



