Chapter III molecular and ionic interactions in dielectrics

Past writers of this chapter have commented upon the difficulty of appropriate selection for the material to be covered. In concurring with this observation, I should further like to express my regret for the instances in which the usefulness of this article may have been curtailed by the particular selection made here. In reviewing a rapidly expanding field whose boundaries are at the same time coalescing with those of many related areas, omissions are inevitable, and coherence is likely to be perforated by discontinuities.