ON THE EXTERNAL CONFORMATION. 19 

 The difference consists in the one having 

 longer quarters than the other, and this is un- 

 doubtedly the form to be preferred. 



The fore part of the carcase contains the 

 heart and lungs, and thould therefore be suffi- 

 ciendy capacious to admit of a free action in 

 those viscera. Horses with flat ribs experience 

 a greater pressure from the atmosphere in their 

 breathing, than those do which have their ribs 

 more arched, consequently they are not so well 

 adapted for respiration. The posterior part of 

 the carcase contains the stomach and intestines, 

 and is generally round and capacious in horses 

 of a strong constitution. The back should sink 

 in a small degree behind the withers, and pro- 

 ceed in a straight line to the end of the loins, 

 and thence fall gradually to the tail. A hollow 

 back renders the motion of the animal easier to 

 the rider, but certainly cannot be so strong as one 

 that is straight. A roach or hog back constantly 

 throws the saddle forwards on the shoulders. 



C2 The 



