THE HORSE. 
21 
Yes/' said Mr. Hill. '^But of course horses 
in a wild state have no shoes. Their hoofs grow 
to make up for what is worn away, just as your 
finger-nails grow. 
12. I will lift up the horse's foot, Tom. Look 
at that pad in the middle of it. That is the 
^frog'. It is not hard like the hoof When the 
Horn of Hoof of Horse. Sole of Hoof, showing Frog, 
horse is not shod the frog rests on the ground, 
and helps to give a firm footing." 
13. I like horses because they are so strong, 
and because they obey us," said Tom. 
" You speak so well of the horses, Tom, that I 
am sure you will always be kind to them. They 
deserve it, for they serve us well. They carry 
us on their broad backs, and draw heavy loads 
for us. Even when dead they are of use to 
us, for their hides are made into good strong 
leather. 
14. It is sad to think that animals are some- 
times treated unkindly by men and boys. It is 
