Abstract
The calculations of an earlier paper are extended to the determination of the entire permeability tensor of a polycrystalline sample of a ferrimagnetic material in which there is a slight over-all magnetization. The calculation takes account of the largely random orientation of the magnetic axes of the crystallites and of the fact that their characteristic resonant frequencies are statistically distributed. It is shown that the magnetic interaction between crystallites can be included, but it does not greatly affect the form of the final results.