Finishing the All-American Canal

Work on the All-American Canal is going forward so rapidly that the great 80-mile ditch and its appurtenant features will be ready to de­liver irrigation water to the Imperial Valley in southeastern California some time during the first half of 1938. The waterway is being dug across a normally desert region that once formed the wa­ter bed of the prehistoric northern ex­tension of the Gulf of California, as we know it today. Paradoxically, that far­ flung section of the Gulf was transform­ ed into a generally barren and arid region by the very river that is to be tapped to assure the continued agricul­tural productivity · of soil that can be made amazingly fruitful by irrigation.