CH. X 



ANGLE OF TRACE 



189 



Major Dwyer * has so pertinently pointed out, that 

 the attachment of the trace must be at that part of 

 the collar which has the least motion when the 

 horse, in action, works his shoulder. 



If the tue to which the trace is attached is too 

 low down, the collar will act somewhat like a breast- 

 strap, the bearing will be against the moving joint, 

 and the collar will stand forward at the top, away 

 from contact with the horse's neck. 



If the tug is too high, the bearing will be on the 

 thin part of the neck, where it will act obliquely 

 against the skin instead of resting on the part which 

 is of such a form as to oive a sort of seat for the 

 collar. Being too high is a 

 less serious fault than being 

 too low, but it should be as 

 nearly as possible at the point 

 (Fig. S3), where the scat for 

 the collar exists, and where 

 the rocking- motion of the 

 shoulder-blade is the least. 



A great deal has been Fig. 83. 



written about the angle of the 



trace, and the experiments of Morin, and others, 

 indicate 12 degrees to the horizontal as being the 

 most effective. As a matter of fact, with the usual 

 point of attachment to the collar, with an average 



* Major Franxis Dwyer, Scats and Saddles. Chapter on 

 Draught, Am. Ed. n.d., part iii. 



