IKKIGATION OF 



CHAPTER 



IRRIGATION OF GARDENS. THE SUPPLY OF WATER. 



Gardens and market farms, by reason of the greater 

 value of the crops raised upon them, in constant succes 

 sion, will permit the application of more costly methods 

 of irrigation than any other cultivated grounds, and from 

 their smaller area there is less difficulty in procuring an 

 ample supply of water. Few gardens are so situated that 

 water can be procured from a stream without the employ 

 ment of a water wheel or other motive power, a force 

 pump, and pipes laid underground, and a reservoir in 

 which water may be stored when not needed. But nearly 

 every one may be supplied from a well by the use of a 

 windmill. A windmill of the smallest size made, and of 

 the best construction and self-regulating, costing about 

 $100, is able to raise two quarts of water per second to a 

 hight of 25 feet. A windmill may be constructed by any 

 fair mechanic at a cost of from $10 to $25, which will 

 ansAver every purpose of those manufactured and sold at 

 higher prices, excepting that of regulating themselves 

 to the varying forces of the winds. A mill of this char 

 acter maybe fixed in a framo over the well, and the arms, 

 of which there may be six, eight, or more, with fans fix 

 ed so as to present their faces at an angle of 45 degrees 

 to the wind, are kept in position by means of a vertical 

 vane behind them. Another, which consists of six arms 

 mounted upon a rotating frame, carries cloth sails. This 

 mill requires to be changed as the wind changes, and a 

 ladder is attached to the frame upon which it is mounted 

 for this purpose. The frame on which to mount it may 

 be of timber, as shown in the engraving (fig. 1), or it 

 may be a stone or brick building if desired for a sub 

 stantial machine for heavier work. The power is con- 



