MODERN RIDING. 



17 



smoothness or roughness, of this part : — the 

 larger and broader it is, the more surface it 

 covers; and thus the pressure, by being dis- 

 tributed over more points, becomes less felt. 

 The enlargement, however, of the canon or 

 jeive should not to be carried to an excess. 

 To render these irons less irritating to the 

 mouth, and to avoid their friction upon the 

 bars, the jeives are provided with loose mov- 

 able rollers of well polished iron, which 

 readily turning on the axes of the bits, very 

 considerably diminish their severity. These 

 movable pieces may also be useful in pre- 

 venting the horse from catching and holding 

 the bit in his teeth. 



The chain is the part most essentially ne- 

 cessary to give effect to all the other parts of 

 the curb, and may be placed, as we have 

 already noticed, at any given distance above 

 the mouth piece; its operation being more 

 powerful, as this distance is exceeded by the 

 length of the branches. 



. c 



