Abstract
FROM the preliminary information and the reference given by Dr. Wyllie and Dr. Gardner, it appears that the difference in their permeability equations may arise from their use of a term for tortuosity. I have avoided this mainly by allowing for the effect of imperfect fit and dead ends and the effect of the smaller pore in a sequence on the average size of the necks connecting the pores. Further details are given in a paper1 which is to appear shortly.
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References
Marshall, T. J., J. Soil Sci. (in the press).
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MARSHALL, T. Permeability and the Size Distribution of Pores. Nature 181, 477 (1958). https://doi.org/10.1038/181477b0
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DOI: https://doi.org/10.1038/181477b0
