Physical properties of lead oxide‐silica glasses were studied in an attempt to correlate these properties and explain the anomalies occurring in their temperature and time curves on the basis of the structure of glass as derived in Part I of this investigation. The transformation point is denned as a critical temperature, and an explanation is offered for the dependence of this temperature on heat treatment and conditions of test. The change in the apparent viscosity of a glass fiber with time is explained on the basis of the distorted glass structure. The Adams and Williamson equation for strain release is adapted to substantiate the theory of the structure of glass consisting of a continuous, randomly oriented, three‐dimensional network of atoms.