The results and conclusions in the recent paper by Pan (2001) are based on an inadequate understanding of the concept and measurement of population density and the fundamentals of the method of crystal size distributions. Not only does Pan perform his example calculations incorrectly, which produces misleading results, but the crystals in the assemblages he generates using random numbers have no genetic relationship to each other whatsoever. Unlike in a true kinetic process of nucleation and growth where crystals begin small and grow larger, he nucleates crystals of random size throughout the size spectrum. The only order in his calculated...

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