Abstract
CONSIDERABLE use has been made of the following power law for expressing the size distribution of particles1–3 : 
where N is the number of particles below diameter D. The distributions have been displayed as plots of dN/dD against D on logarithmic axes which give straight lines of slope −γ. The positions of the lines have been arbitrarily adjusted in the belief that K was merely a concentration factor3. This supposition is erroneous with the result that distributions which have been published in this form cannot be interpreted by a reader.
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References
Hamilton, R. J., and Knight, G., Mechanical Properties of Non-metallic Brittle Materials, edit. by Walton, W. H., 365 (Butterworth, London, 1958).
Hodkinson, J. R., Safety in Mines Res. Est. Res. Rep., No. 153 (Sheffield, 1958).
Cartwright, J., and Skidmore, J. W., Ann. Occup. Hyg., 3, 33 (1961).
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DAVIES, C. Distribution of Particle Size in Dust. Nature 201, 172–173 (1964). https://doi.org/10.1038/201172a0
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DOI: https://doi.org/10.1038/201172a0
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Distribution of Particle Size in Dust
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