Bui. 995. U. S. Dept. of Agriculture. 
Plate II 
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Fig. I. — The Smooth Roller, a Useful Implement in Packing the Seed 
Bed before and after Planting. 
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Fig. 2. — The Corrugated Roller, an Imflement Which Breaks the 
Crust and Ridges the Ground against Wind Effect. 
