WINDMILLS. 



windmills are used for pumping, but they will 

 also hold good for almost any kind of a pumping 

 plant, as allowance must always be made for break- 

 downs and other accidents. 



A windmill offers the cheapest power for 

 raising water, but its chief drawback is the uncer- 

 tainty of its action. With a reservoir of any of 

 the capacities given, however, this objection is in 

 a measure overcome, as it seldom happens that 

 there are more than three or four days without 

 wind and the supply in the tank will usually tide 

 over these periods. A ten-foot windmill, with 

 pump and tower, and five thousand gallon tank and 

 tower for same complete, will cost about three 

 hundred dollars. This outfit ought, under all 

 ordinary conditions, to serve for from ten to 

 fifteen thousand plants. 



As already mentioned, windmills have the 

 objection of being uncertain in action. They 

 furthermore do not give the facilities for spraying 

 that can be obtained with other power. To 

 obtain twenty pounds pressure, it will be neces- 

 sary to have the tank raised more than forty feet 

 above the beds, and this is not always practicable. 

 Our preference is therefore for an economical 

 power that is ready at short notice and at all 

 times and can be used for developing pressure as 

 it is needed. Such a machine is to be found in 

 many of the gasoline engines now on the market 

 and which can be bought at very reasonable 



