From measurements at 250 MHz on glass bead packs saturated with water or methanol and similar systems, Lange concludes that “…an interaction between water and the solid matrix has an important effect on the composite dielectric constant.” We are of the opinion that this constitutes an incorrect interpretation of his data, brought about by the use of an unphysical “model.” Lange's conclusions require a modification of properties of the fluid near the solid surface over distances which extend several orders of magnitude farther into the fluid than shown by most accepted evidence. Our analysis shows none of this.

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