C. E. Jacob 1946 <p><span>The Subcommittee on Permeability of the Permanent Research Committee on Ground Water of the Section of Hydrology, was organized in 1943 to provide for the open discussion of the terminology relating to permeability with a view toward the elimination of conflicting usages and the clarification and standardization of acceptable terms. Confusion had arisen not only in the units of measurement but also in the notation and nomenclature of permeability. It seemed desirable to have general agreement particularly in regard to the names of the different physical parameters in common use and their symbols.</span></p> application/pdf 10.1029/TR027i002p00245 en American Geophysical Union Appendix A—Report of the subcommittee on permeability article