THE GALLOP. 131 
there are three beats, while in the flying gallop two only are performed ; 
but in practice there is no such variation. 
THE EXTENDED GALLOP. 
AccoRDING TO MOST OBSERVERS, this pace is a succession of leaps, 
smoothly and rhythmically performed, but Mr. Percivall has shown that 
there is a considerable difference between the two actions. He says in 
RECEIVED INTURPRETATISCN C¥ THE GALLOP. 
his lectures, —“ In galloping a horse, in hunting, for example, the rider needs: 
no person to tell him of the moment when his horse is taking a leap, however 
trifling it may be; his own sensations inform him of every grip or furrow 
his horse leaps in his course, and should he have occasion to make a 
succession of such jumps, the rider’s sensations in his saddle are of a very 
different—very uneasy—kind, compared to such as he experiences during 
the act of galloping. This arises from two causes: from the spring or 
movement of the body necessary to produce the leap being more forcible 
or sudden than that required for the gallop, and from the latter being 
created and continued rather by the successive action of the two hind feet 
at one moment, and of that of the two fore feet at the next moment, 
than from the synchronous efforts of either biped, as happens in the leap. 
The twogreat propellers of the animal machine—the hind feet—are in 
the leap required to act simultaneously, to make one grand propulsory 
effort ; not so in the gallop, that being a movement requiring maintaining, 
not by synchronous exhausting efforts of the hind feet, but in swift 
succession, first by one, then by the other; and the same as regards the 
office performed by the fore limbs, which latter probably amounts to 
little more in effect than the sustentation of the fore parts of the body. 
The vault into the air required for the leap is only to be effected by 
extraordinary subitaneous effort, but the stride of the gallop, requiring 
frequent repetition, does not exact this effort—amounts, in fact, to no 
more than a sort of lift from the ground, multiplied into a reiteration of 
K 2 
