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Show HOW TO PREVENT ROAD DUST1 ! Breaking Up of Ridges Formed When ! Roadbed Is Wet From Standing Water Causes Trouble. ! Dust in the rood Is largely caused by the breaking up of the ridges formed when the rond bed is wt from standing water. If the roadbed Is kept well crowned and smooth water will rnn off. The surface will soften ; up some in cnxe of n long rain, but It j will not he nearly so bad ns when' there are ruts which hold the water. The wheels of each passing vehicle make the rut a little deeper. The best way to keep the roadbed smooth Is to run over it wtih the rond drag. This shoiffil be done soon after It , ruins. The soil Is then soft so It can . be easily scraped off nnd dropped Into any depressions. The harrow alo i lays the soil down In layers. It sort of plasters It down, which makes a ; harder surface than when the soil Is ; dumped onto the roadbed. The road drag Is the most effective dust preven-! ter except oiling the roads. j , i |