CENTRE OF GRAVITY. 55 



We may readily see that the less deep is a horse's body, compared 

 to his length of leg — in other words, the more " daylight " he has under 

 him — the higher and more unstable will be his centre of gravity ; and 

 vice versa. Taking the foregoing remarks with those on the effect which 

 instability of equilibrium has on speed (p. 6g), we may conclude that the 

 faster the horse, other things being equal, the greater will be the pro- 

 portion of weight on his fore-hand. 



