7S 



fibres feparated from each other, cannot act to 

 advantage. 



The abforbents of the body, or the veflels that 

 are continually taking up both folids and fluids, arc 

 ItimuUxted to adl by various means. Exercife is one 

 of the ftrongeft of thefe ; it is by this means, there- 

 fore, that fat horfes are made lean : for this fat be- 

 comes taken up from the interftices of the mufclcs, 

 and placed where there is lefs prelTure ; fo that the 

 horfe, if well fed, ftill continues lufty, but the fat 

 is more advantageouily difpofed. Exercife enlarges 

 the mufcles, for Nature endeavours to become equal 

 to her wants ; therefore, when horfes or dogs are 

 trained for hunting, or racing, they have regular 

 and long continued exercife. Exercife improves the 

 wind, by taking up the furrounding fat from the 

 heart and cheit, and, thus, allowing the lungs to 

 expand : it alfo enlarges the air cells of the lungs; 

 and hence, by imbibing more air, the animal can 

 remain longer between his infpirations. 



To give rules as to what quantity of exertion is ne- 

 ceflary, we Ihould know exadly what is the age, con- 

 ftitution, and feeding, of the horfe. A young horfe 

 requires more than an old one ; but, if very young, 

 it muft then be neither very fatiguing, nor very long 

 continued. Some colts are obferved to come out of 

 the hands of the breaker with windgalls, or fplents. 

 A full-fed horfe ihould have his exercife continued 



