136 



ELEMENTS OF HIPPOLOGY. 



part of a day, but the next morning it is gone; he leaves the 

 stable all right, but goes lame again during the day. In time he 

 has a severe attack of lameness, which may last a week or more, 

 when a remission takes place, and it may be weeks or months 



Figure 89. — Pointing a Toe for Navicular Disease. 



before another attack supervenes. Finally, he becomes con- 

 stantly lame, and the more he is used the greater the lameness."* 

 The polo-pony pointing his toe in Figure 89 went through 

 the phases described above exactly. The first long attack came 



*Page 410, " Diseases of the Horse," Bureau of Animal Industry, 

 1903. 



