Distributing Hydrants 



301 



When the waiter reaches the irrigator, his delivery is made 

 over a small weir, to which the water rises from below in a 

 similar but smaller cement chamber, two of which are repre- 

 sented in Figs. 62, 63 and 64. In Fig. 62, the water is seen 

 pouring from the cement chamber or < r hydrant " over a small weir 

 into a distributing flume. Two other weirs in the same hydrant 

 are closed by gates, and it will >e seen that by transferring 

 either of the two gates to the weir now in use, the water would 



Fig. 62. Cement hydrant, with weir and distributing flume. 



be turned from its present course to the one of the other two 

 desired. In Fig. 63, the water is seen' flowing from the front 

 weir, while the discharge is prevented from taking place into 

 the compartment at the left and in the rear by the two gates 

 now in place ; but i:i Fig. 64, the left gate has been removed 

 without putting it in front, as would ordinarily be the case, so 

 as to show the water pouring over that weir into its underground 

 pipe for delivery in another direction. 



The system for supplying water for irrigation, now briefly 

 described, and illustrated by Figs. 57 to 64, represents the high- 





