CHAPTER XVIII. 

 DEVICES, APPLIANCES AND CONTRIVANCES. 



HHERE are innumerable devices in use in irri- 

 gating operations, some of which may be 

 of home-made construction, and these the 

 author will describe but briefly, after having 

 given the details for a city sewerage system as 

 applied to irrigation operations near several western 

 cities. We include this reference to sewage in this 

 chapter not because it properly belongs herein, but 

 from the fadl that space forbids a separate chapter 

 devoted to it and there is no other place in which it 

 might properly appear. 



In irrigation work the operator needs first of all 

 things a pair of heavy rubber boots and a long-handled, 

 round-pointed vshovel. These might well constitute 

 his entire working outfit, and with a simple knowledge 

 of irrigation, as we have endeavored to present in the 

 preceding pages, he is ready to do a day's work in any 

 field requiring the magic touch of the vivifying waters. 

 A Sewage System. — The rich fertihzing elements 

 of the city sewers may often be carried out upon 

 garden tra(5ls, and there applied to the best possible 

 advantage. The writer will describe the system in 

 vogue at Trinidad, Colorado, which may answer for 

 all. This sewer is constru<5led of eighteen-inch vitri- 

 fied pipe laid to a grade of two-tenths of a foot in one 



394 



