LESSON ELEVEN 
HOW DO HORSES MOVE? 
. Plants and animals 
. Crowbar 
. Bones 
. Lever 
How a horse moves 
. How a horse stands 
The center of gravity 
. Gaits 
The walk 
10. The trot 
11. The pace 
12. The gallop 
13. Quality 
14. Saddle gaits 
15. Muscles 
OAD OU wo DD 
Note to the Teacher—The points brought out in this 
lesson are (1) that the laws of physics apply to the horse 
or other animals just as they do to inanimate machines; 
(2) the influence of the center of gravity upon the produc- 
tion of force and speed; and (3) the relation that this 
fact has upon the well-known difference in the speed of 
such gaits as the walk, trot, pace and gallop. It is be- 
lieved that considerable time can be spent profitably in 
watching the movement of horses. This lesson can be 
made more useful and interesting if it is possible to have 
a horse present during the recitation period. 
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