96 THE HOUSE I LIVE IN. 



being easily slipped out or dislocated. They 

 are also intended for another purpose, scarcely 

 less important a purpose which shows . the 

 wisdom of the great Creator in contriving the 

 human frame, more than almost anything I 

 know. 



The wagoner or stage driver has a mix- 

 ture of tar, or perhaps tar and oil, some of 

 which he often puts upon the axle of his car- 

 riage, where the wheel turns upon it. If 

 this were not done, the axletree would soon 

 become very dry, and the wheel would wear 

 it. If the carriage were driven very fast, it 

 might happen that it would take fire ; for rub- 

 bing dry wood together, as you know, will 

 produce fire. More than one stage coach has 

 been set on fire, in this way, within a few 

 years. 



WEAR or THE JOINTS. Now what pre- 

 vents the joints of the human body from wear- 

 ing out rapidly, in the same manner, when we 

 walk much, or run swiftly ? 



The Father of the universe is the preserver 

 as well as the creator of this " wondrous 



