Show DUST STORM WIPES OUT MIDWEST GRAIN CROPS SIOUX CITY Iowa April 19 UP Farmers of four states surveyed wind torn fields Thursday where the twelfth dust storm of the spring season sea son left ruined fields or of newly sown grain and bare roots about their winter win ter grains Dense clouds of dust blotted out the sun Wednesday as aI a 40 milc an hour gale scooped up soil which has been tossed about in the worst spring weather in 50 years The storm extended over eastern South Dakota western Minnesota northeastern Nebraska and northwestern northwestern north north- western Iowa |