Chapter IX solid inorganic insulation

The second annual volume of Progress in Dielectrics¹ was published under the editorship of Birks and Schulman with emphasis this year on weak-field behavior. Two chapters are of pertinence - “Theory of Polarization and Absorption in Dielectrics: An Introductory Survey” by G. Wyllie, and “The Dielectric Properties of Glass” by P. M. Sutton, both of which present general reviews of the subjects with special concern for work of the past few years. Sutton´s contribution was limited to the inorganic oxide class of glasses and covers 1) volume and surface conductivities, dielectric absorption and polarization in dc fields, 2) dielectric constant and losses in ac fields, and 3) other matters such as breakdown strength, photo-conduction and photo-emission, secondary emission, and bombardment phenomena.