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AWFUL POWER OF WAVES. 



A GREAT WAVK AT THE CAPE OF GOOD HOPE. 



Waves travel at a rate which increases in pro- 

 portion to their size and the depth of water in 

 which they are formed. Every one knows that on 

 most lakes they are comparatively small and harm- 

 less. In some lakes, however, such as Lake Superior 

 in North America, which is upwards of three hundred 

 miles long, the waves are so formidable as to re- 

 semble those of the ocean, and they are capable of 

 producing tremendous effects. But the waves of 

 the sea, when roused to their greatest height, and 

 travelling at their greatest speed, are terrible to 

 behold. Their force is absolutely irresistible. Some- 



