528 



Bulletin 84 



sented by the sample of fine sandy loam from the Sulphur Spring 

 Valley Dry-farm reported in Tables XVIII and XIX. It absorbs 

 water readily and with cultivation retains moisture well. The large 

 amount of lime is due to the presence of a calcareous hardpan. 

 This soil is not so fertile as the bottom lands reported in Table 

 XVII. 



Fig. 0. — San Simon Wash near .Solonionville, Ai'izona. 



TABLIv X\l. AII'CIIAXICAL ANALYSIS OF IIOTTOM SOIL, SULPHUR SPRING 



VALLLV DRY-FARM 



