01077cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035002000092040002500112050002200137110003100159245012600190246005900316260004800375300007100423490006000494500006800554500008200622650002700704650003600731830002700767999001700794agr40000271 DLC20260227110958.0950816s1940    dcua          000 0 eng    aagr40000271   a(OCoLC)34642798  aDLCcNNCdOCoLCdDLC00aS623b.U44 no. 121 aWebb, David Thomas,d1908-10aErosion and related land use conditions on the Hell and Mud creeks demonstration project, Mississippi.cBy D. T. Webb ...00aHell and Mud creeks demonstration project, Mississippi  aWashingtonb[U.S. Govt. print. off.]c1940.  a1 p. l., 25 p.billus., 10 maps (9 fold. in pocket) diagr.c26 cm.1 aU. S. Soil conservation service. Erosion surveyvno. 12  aIssued by U. S. Dept of agriculture. Soil conservation service.  aField survey by D. T. Webb, N. I. Brown, R. M. Fisher, jr., and C. D. Melton. 0aLand usezMississippi. 0aSoil conservationzMississippi. 0aErosion surveyvno. 12  c10030d10030