CONCLUSION. 443 



and man remain the same, her attractions cannot be neglect- 

 ed. Her progress may be relatively slow, until some of her 

 large, dry valleys shall be provided with irrigation, and until 

 her tule lands shall have been securely reclaimed ; but so soon 

 as extensive areas, now unfit for secure tillage, on account of 

 the lack or the excess of water, shall have been protected 

 against flood and drouth, there will be a rapid increase in her 

 population and wealth, and a decided improvement in the 

 character of her industry. She can and she will sustain a 

 population of twenty millions. 



