OUR SUMMER VACATION 



197 



ally small ; first, because water is not abundant near the 

 surface of the earth, and second, because cheap pumps are 

 poorly constructed and cannot 

 raise a large amount. But the sup- 

 ply will usually be sufficient for 

 the needs of simple camp life, and 

 many a small farm uses this form 

 of well, not only for household 

 purposes, but for watering the 

 cattle in winter. 



If the cheapness of such pumps 

 were known, their use would be 

 more general for temporary pur- 

 poses. The cost of material need 

 not exceed $5 for a ID-foot well, 

 and the driving of the pipe could 

 be made as much a part of the 

 camping as the pitching of the 

 tent itself. If the camping site is 

 abandoned at the close of the va- 

 cation, the pump can be removed 

 and kept over winter for use the 

 following summer in another place. 

 In this way the actual cost of the 



water supply can be reduced to scarcely more than $3, the re- 

 movable pump being a permanent possession. In rocky or 

 mountain regions the driven well is not practicable, because 

 the driving point is blunted and broken by the rock and can- 

 not pierce the rocky beds of land. 



188. Our Summer Vacation. It has been asserted by some 

 city health officials that many cases of typhoid fever in cities 

 can be traced to the unsanitary conditions existing in summer 

 resorts. The drinking water of most cities is now under 



FIG. 139. A driven well. 



