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BULLETIN 487, U. S. DEPARTMENT OF AGRICULTURE. 
LIGHT HORSES. 
Relation of form to function. — The demand made upon the draft 
horse is to pull a heavy load ; this function is associated with weight 
and great strength. The demand made upon the light-harness 
horse is to move a relatively light vehicle at a rapid rate ; this func- 
tion is associated with a lighter, more angular form and great en- 
durance. 
GENERAL APPEAEANCE. 
Height and weight. — The most desirable height for a light-harness 
horse, or roadster, is from 15 to 15J hands. They may range in 
Fig. 14. — Judging action. Horse moving past student at a walk. 
weight from 900 to 1,150 pounds, the weight most desired being 1,000 
to 1,100 pounds. 
Form. — Angularity with length of body and limbs is an indication 
of speed. There should also be sufficient depth of chest to indicate 
capacity of vital organs so closely correlated with stamina. 
Quality. — In the light-harness horse there should be a complete 
absence of coarseness. There is a very close correlation between 
quality and endurance, as well as with style, spirit, and speed. It is 
especially important that the legs and feet show every indication of 
quality. 
