PROPORTIONS AND MECHANICS OF THE HORSE 3I 



Measuring the angles.— If an arthrogoniometer, useful 

 for measuring articular angles, is not available, the in- 

 clination of the members and the value of the angles may 

 be obtained bj'^ sticking wafers over the joints, on the 

 withers, hips and hoofs, which serve as marks to indicate 

 the direction of the members. Place the horse in a good 

 position and photograph him. Upon the photographic 



FIG. 16.— A STUDY IN ARTICULAR ANGLES 



print thus obtained the wafers serve as landmarks which 

 may be joined by straight lines to obtain the real direc- 

 tions of the members. It only remains now to estimate 

 with a protractor the inclination of each line as well as 

 the value of the angles which are formed by the lines. 



