Independent positive and negative partial fields of equal value are assumed to be associated with every source mass. These complimentary electric fields behve like dormant fields with a net zero field strength except in the region of a proton or electron. A mass upon which these fields are impressed contains an equal number of protons and electrons. Even a neutron is assumed to contain a proton and electron. The impressed partial fields exert a combination of attraction and repulsion on protons and electrons embedded in that mass. A nonlinearity in the region of each of those charges tilts the balance such that the net electric force is one of attraction that meets the conditions of a gravitation force. The theory is then extended to include additional properties of the dormant field, such as a "medium" to take the place of Maxwell's luminiferous ether and a feedback medium in electrodynamics. This unification of electromagnetic theory and gravitation also includes gravitational radiation.