Abstract
It is pointed out that, strictly, neither the localized model nor the collective electron model predicts the Curie-Weiss law; consequently, its application to experimental data would lead to results of doubtful significance. It is suggested that it is more advantageous to plot Q(=(χT)-1) against T-1. This is illustrated with recently evaluated magnetic susceptibility curves for a face-centred cubic system, taking into account ferromagnetic and antiferromagnetic, first and second neighbour Heisenberg interactions.