Letter | Published:

Permeability and the Size Distribution of Pores


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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  1. 1

    Marshall, T. J., J. Soil Sci. (in the press).

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