Abstract
In a recent paper (abstr. A74234 od 1972) Robinson and March gave a discussion of the correction factor due to many-particle interactions to the van der Waals interaction between two atoms of a dense rare gas fluid. A central role in their treatment is played by the volume integral of a quantity involving the pair distribution function. By taking various numerical examples for this function it appeared that the value of the integral is almost independent of the structure of the fluid and depends mainly on the density. In this comment it is shown that this conclusion is rigorously valid and can be proved analytically without numerical work.
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