The 4-electrode method was used in measuring the electrical resistance of the soil as a function of moisture content in both a Sudan grass and a sugar beet plot. Tinned iron electrodes proved more sturdy and convenient than carbon and were satisfactory. There was no sudden increase in the electrical resistance of the soil as the plant continued to remove water in the vicinity of the permanent wilting %. When the electrical resistances of a soil supporting a crop are plotted as a function of moisture content, a curve is obtained showing a rapid increase in resistance with decreasing moisture content in the neighborhood of the permanent wilting %. This curve appears to be asymptotic to the moisture content corresponding to the permanent wilting %. A comparison of the resistances at the same moisture content before and after irrigation indicates that the variations in resistances due to factors other than moisture are not great in the top 4 feet of soil. Evidently the four-electrode method of indicating variations in soil-moisture content has promise.