Soil Mechanics.- to Soil Mechanics.- Lower bound collapse theorem and lack of normality of strain rate to yield surface for soils.- Proceedings of the Geotechnical Conference OSLO 1968.- The double sliding, free rotating model for granular assemblies.- Photoelastic verification of a mechanical model for the flow of a granular material.- Elasto-plastic version of the double sliding model in undrained simple shear tests.- Improvement of the lowerbound solution for the vertical cut off in a cohesive, frictionless soil.- Application of the calculus of variations to the vertical cut off in cohesive frictionless soil.- A variational fallacy.- Consolidation around pore pressure meters.- Application of stress functions to consolidation problems.- Consolidation models consisting of an assembly of viscous elements or a cavity channel network.- Verification of the use of peak area for the quantitative differential thermal analysis.- A capacitative cell apparatus.- Étude photo-Élastique dun empilement de disques.- Flow and Transport in Porous Media.- to Flow and Transport in Porous Media.- Singularity distributions for the analysis of multiple-fluid flow through porous media.- Moiré patterns of the membrane analogy for ground-water movement applied to multiple fluid flow.- A many-valued hodograph in an interface problem.- Generating functions in the theory of flow through porous media.- Vortex theory for multiple fluid in three dimensions.- The simultaneous flow of fresh and salt water in aquifers of large horizontal extension determined by shear flow and vortex theory.- Lentrainement de particules par le courant intersticiel.- Longitudinal and transverse diffusion in granular deposits.- Discussion of Longitudinal and transverse diffusion in granular deposits.- Transverse dispersion from an originally sharp freshsalt interface caused by shear flow.- The tensor character of the dispersion coefficient in anisotropic porous media.- Dispersion in fissured rock.