Bui. 159, U. S. Dept. of Agriculture. 



Plate V. 



Fig. 1.— Gravel Bed which is Generally Found Underlying the Soils of the 

 Sassafras Series, Kent County, Md. 



Fig. 2.— Disk Harrow Used in Preparing the Seed Bed on the Sassafras 

 Loam and Silt Loam. 



