ABSTRACT

THE use in the text of such terms as magnetic susceptibility, permeability and lines of magnetic force calls for some explanation, as some readers may not be familiar with the meaning of these terms. Moreover, the magnetic properties of the elements become those of the atom and molecule, and in studying atomic structure magnetism may come more into prominence as atomic phenomena are further investigated. Therefore, a short account of magnetic susceptibility along general lines will be introduced here. In using the expression lines of magnetic force, it will be shortened to magnetic lines and in some cases the word lines only will be used.