Youd, T. L. Maximum density of sand by repeated straining in simple shear.--McDowell, C. and Smith, A. W. Compaction control by ratio of volume of gyratory specimens to volume of test holes.--Williams, A. A. B. and Marais, G. P. The use of an impact roller in compacting a collapsing sand subgrade for a freeway.--Yandell, W. O. Prediction of the behavior of elastoplastic roads during repeated rolling using the mechano-lattice analogy.--Witczak, M. W., Lovell, C. W., Jr., and Yoder, E. J. A generalized investigation of potentially poor soil support by regional geomorphic units within the conterminous 48 states.--Gidigasu, M. D. Parameters for classification of fine-grained laterite soils of Ghana.--Townsend, F. C., Manke, P. G., and Parcher, J. V. The influence of sesquioxides on lateritic soil properties.