THE ADVANTAGES OF IRRIGATION. 



17 



ditches. The eye of a novice could mark them with 

 accuracy as they wound about the foothill slopes, 

 dotting the landscape with patches of emerald, where 

 lone settlers and busy towns were located. An illus- 

 tration of this condition is given in Fig. 4, showing the 



FIG. 4 — DIVIDING LINE BETWEEN DESERT AND ORCHARD. 



course of an irrigating ditch dividing the unbroken 

 prairie and a newly set orchard. 



It is in the horticultural pursuits that the highest 

 degree of perfedlion as the patrimony of modern irriga- 

 tion is to be realized. Under any system of irrigation 

 where a constant supply of water is to be had the hor- 



