60 Rivers Their Uses. 



3. On the chart you may see a river formed 

 by rain which falls on the hills ; and on the left, 

 in front, you may see a river which has its 

 source, or beginning, or head, very far up a 

 mountain, which is so high that its summit or 

 top is always covered with snow. (See p. 14.) 



4. Rivers at first are usually very small ; 

 almost any of you could jump or wade across 

 them. In some places they tumble over preci- 

 pices, where they are called cascades or water- 

 falls. But as they flow on and down, they are 

 joined by other little streams coming from dif- 

 ferent directions, and little by little they grow 

 larger and deeper. 



5. In some places you 

 would find boys and men 

 having fine sport with their 

 fishing-rods, lines, and 

 hooks catching trout or 

 other fish. 



6. As you descend the stream, you may see 

 a mill so built that the rushing water may turn 



a great wooden wheel. This wheel is made 

 either with broad arms like the paddle-wheels 

 of a steamboat, or with buckets at its outer 

 edge, that the stream may so strike these arms 

 or fill the buckets as to turn it round and 

 round, as shown on the next page. 



