xvi Contents 



CHAPTER IX 

 SUPPLYING WATER FOR IRRIGATION (pages 290-328) 



PAGES 



Diverting River Waters. Sirhind canal Kern Island canal 

 Dangers from seepage Redlands system Redwood 

 pipe line Inverted siphon Redwood flume Cement 

 flume Cement hydrants 290 304 



Diverting Underground Waters. By submerged dams By 



submerged canals By tunnels 304, 305 



Diverting Water by Tidal Damming 306 



Diverting Water by Power of the Stream. Undershot wheels 

 Bucket wheels Turbines Hydraulic rams Ram- 

 ming engines Siphon elevator 306-310 



Utilising Storm Waters for Irrigation 311, 312 



Wind Power for Irrigation. Record of experiments 312-316 



Water Pumped in 10 -day Periods. Number of acres a 



windmill may irrigate 316-318 



Necessary Conditions for the Highest Service with a Wind- 

 mill. Good exposure More than one pump Storage 

 system 318,319 



The Use of Reservoirs. Construction Size to supply given 



areas 320-323 



Pumping Water with Engines. Cost with gasolene With 



steam In Egypt 324 327 



Use of Animal Power for Lifting Water for Irrigation. 



Persian wheel Bucket pump Doon- Shadoof 328 



CHAPTER X 



METHODS OP APPLYING WATER IN IRRIGATION (pages 329-402) 



Principles Governing the Wetting of Soils. Influence of 



texture Effect of soil becoming dry 330-334 



