Abstract
Effects of the anisotropic valence and dispersion interactions on the high temperature characteristics of solid hydrogens are discussed by classifying the interactions according to the transformation properties. The cancellation and suppression of the above interactions are shown concisely by the use of tensor algebra. It is pointed out that the consistency among various kinds of measurements is independent of any form of the assumed interactions. A detailed analysis of the De Boer type of the valence interaction is also given.