95 





Levee 



FIGURE 12. --Sketch of water supply lay-out at Isleta station, 

 inches per acre in July 1937, equaling 157 per cent of the 

 evaporation loss from a Weather Bureau pan. 



Saltgrass . --Consumptive use by saltgrass is small compared 

 with that of cattails and sedge. In the experimental results it 

 appeared as about half the evaporation loss from a Weather Bureau 

 pan despite a high water table in the saltgrass tank. Records 

 for southern California (4) show a higher consumptive use for the 

 coastal region than for the more arid climate of central New Mex- 

 ico, possibly due to differences in density of growth. 



Willows . --Measurement was also made of the quantity of 

 water consumed by willows growing 6 to 8 feet high, in a tank 



