XVI 



CONTENTS 



CHAPTER XVI 



Irrigation and Drt-farming . 



The Scarcity of Water . 



Available Surface Water 



Available Subterranean Water 



Pumping Water 



Use of Small Quantities of AVater in Irrigation 



PAGE 



328-350 



331 

 333 

 338 

 341 

 344 



CHAPTER XVII 

 The History or Dey-faemixg 351-381 



Origin of Modern Dry-farming in the United States . . 354 



Utah 



California 



The Columbia Basin 



Great Plains Area 



Uniformity of Methods 



H. W. Campbell 361 



The Experiment Stations 365 



The United States Department of Agriculture . . . 372 

 The Dry-farming Congress ....... 374 



Jethro TuU 378 



CHAPTER XVIII 



The Present Status op Dey-fakmisg .... 382-398 



California . 332 



The Columbia River Basin 384 



The Great Basin 386 



Colorado and Rio Grande River Basins .... 388 



The Mountain States 389 



The Great Plains Area 389 



Canada 391 



Mexico 391 



Brazil 392 



Australia , ggg 



