BIPEDS AND QUADEUPEDS. 141 



estimated by the number of miles performed in a 

 given time, but by the natural or acquired speed of 

 the horse performing it ; top speed in any pace, in 

 man or beast, must produce distress, the severity of 

 that depending on the duration of the exertion ; a 

 walk at top speed distresses as much as a run ; for 

 instance, a man, I mean a professional pedestrian, is 

 as much distressed by walking seven miles within 

 the hour as by running ten in the same time ; and 

 many a horse that would gallop eighteen miles vvithin 

 one hour with comparative ease, would be dead tired in 

 trotting twenty in two ; if a bad goer in his trot- 

 ting pace. 



I will now state where mistaken intentional kind- 

 ness would produce a result quite different to the 

 humane wishes of the person shewing such. We 

 will suppose a person to have a horse a fair goer, 

 that is, can do his twelve miles in the hour in a light 

 vehicle ; he wishes to drive eighteen, in a hot day, 

 and kindly determines to drive it as slow as foot can 

 fall ; the consequence is, his horse is kept under a 

 broiling sun, and with the dust hovering about him. 



