148 



IRE IRRIGATION AGE. 



FLUME 



water bearing strata of sand is deep enough through it to permit of a 

 greater length of screen point than is contained in one point, then two 

 or more screen points, one above the other, should be used, unless the 

 strata is composed of very coarse sand or gravel and yields a large 

 supply of water; but where the water bearing sand strata is not deep 

 enough through it to permit of such arrangement, then two or more 

 points may be arranged independently of each other, and far enough 



